# Results of the 2018 Taiwanese magistrate/mayor elections

The 2018 Taiwanese municipal elections for both mayoral and magisterial candidates were held on 24 November 2018, as part of the larger local elections in Taiwan.

## 2018 municipal election candidate nominations

Nominations for 2018 municipal elections :
| Date | Party/wave | Nominations and details |
| 24 September 2017 | DPP | The Democratic Progressive Party (DPP) held its national congress, mainly to gain support in the upcoming local and municipal elections, giving the incumbent a priority to be nominated. |
| 29 November 2017 | DPP/01 | Incumbents Lin Yu-chang (Keelung City) Cheng Wen-tsan (Taoyuan City) Lin Chih-chien (Hsinchu City) Lin Chia-lung (Taichung City) Wei Ming-ku (Changhua County) Lee Chin-yung (Yunlin County) Twu Shiing-jer (Chiayi City) Pan Men-an (Pingtung County) Chen Kuang-fu (Penghu County) |
| 20 December 2017 | KMT/01 | Incumbents Hsu Yao-chang (Miaoli County) Lin Ming-chen (Nantou County) Liu Cheng-ying (Lienchiang County); Primary winner Wang Huei-mei (Changhua County) |
| 27 December 2017 | DPP/02 | Hung Guo-haw (Nantou County) Liu Chao-hao (Taitung County) |
| 31 January 2018 | KMT/02 | Primary winners Lin Zi-miao (Yilan County) Hsu Ming-tsai (Hsinchu City) Rao Ching-ling (Taitung County) Hsu Chen-wei (Hualien County) Chang Li-shan (Yunlin County) |
| 7 February 2018 | KMT/03 | Hsieh Li-kung (Keelung City) after negotiation due to opinion poll error |
| 21 February 2018 | KMT/04 | Lu Shiow-yen (Taichung City) |
| 27 February 2018 | KMT/05 | Huang Min-hui (Chiayi City) |
| 14 March 2018 | DPP/03 | Weng Chang-liang (Chiayi County) Chen Ou-po (Yilan County) Chen Chi-mai (Kaohsiung City) Huang Wei-cher (Tainan City) |
| 21 March 2018 | KMT/06 | Lai Feng-wei (Penghu County) |
| 11 April 2018 | KMT/07 | Apollo Chen (Taoyuan City) Hou You-yi (New Taipei City) |
| 25 April 2018 | KMT/08 | Wu Yu-jen (Chiayi County) Su Ching-chuan (Pingtung County) |
| 25 April 2018 | DPP/04 | Liuh Siao-mei (Hualien County) Cheng Chao-fang (Hsinchu County) |
| 9 May 2018 | KMT/09 | Yang Cheng-wu (Kinmen County) Ting Shou-chung (Taipei City) |
| 23 May 2018 | KMT/10 | Han Kuo-yu (Kaohsiung City) Kao Su-po (Tainan City) |
| 30 May 2018 | DPP/05 | Pasuya Yao (Taipei City) |
| 13 June 2018 | KMT/11 | Yang Wen-ke (Hsinchu County) |

## Results summary

Bold represents incumbent re-elected.
Elected special municipalities mayors and county magistrates :
| County/City | Elected candidate | Party |
| Keelung City | Lin Yu-chang | DPP |
| New Taipei | Hou You-yi | KMT |
| Taipei | Ko Wen-je | Ind |
| Taoyuan | Cheng Wen-tsan | DPP |
| Hsinchu County | Yang Wen-ke | KMT |
| Hsinchu City | Lin Chih-chien | DPP |
| Miaoli | Hsu Yao-chang | KMT |
| Taichung | Lu Shiow-yen | KMT |
| Nantou | Lin Ming-chen | KMT |
| Changhua | Wang Huei-mei | KMT |
| Yunlin | Chang Li-shan | KMT |
| Chiayi | Weng Chang-liang | DPP |
| Chiayi City | Huang Min-hui | KMT |
| Tainan | Huang Wei-cher | DPP |
| Kaohsiung | Han Kuo-yu | KMT |
| Pingtung | Pan Men-an | DPP |
| Yilan | Lin Zi-miao | KMT |
| Hualien | Hsu Chen-wei | KMT |
| Taitung | Rao Ching-ling | KMT |
| Penghu | Lai Feng-wei | KMT |
| Kinmen | Yang Cheng-wu | KMT |
| Lienchiang | Liu Cheng-ying | KMT |
Changes in seats :
| Party | Seats in 2018 | Seats in 2014 | Change |
| DPP | 6 | 13 | 7 |
| KMT | 15 | 6 | 9 |
| Ind/Other | 1 | 3 | 2 |
Special municipalities/County/City re-elected incumbent :
| County/City | Previous control | New Control |
| Taipei | Ko Wen-je | Ind |
| Keelung City | Lin Yu-chang | DPP |
| Taoyuan | Cheng Wen-tsan | DPP |
| Hsinchu City | Lin Chih-chien | DPP |
| Miaoli | Hsu Yao-chang | KMT |
| Nantou | Lin Ming-chen | KMT |
| Pingtung | Pan Men-an | DPP |
| Lienchiang | Liu Cheng-ying | KMT |
Special municipalities/County/City switching control :
| County/City | Previous control | New Control |
| Taichung | DPP | KMT |
| Kaohsiung | DPP | KMT |
| Changhua | DPP | KMT |
| Yunlin | DPP | KMT |
| Chiayi City | DPP | KMT |
| Yilan | DPP | KMT |
| Hualien | Ind | KMT |
| Penghu | DPP | KMT |
| Kinmen | Ind | KMT |

## Special municipality
### Taipei

Political context prior to the elections
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 52% |
| Kuomintang | 2002 local elections | 64% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 51.96% | 2 | 14.14% |
| Kuomintang | 37.49% | 5 | 39.66% |
| New Power Party | - | 1 | 6.60% |
| Taiwan Solidarity Union | - | 0 | 0.95% |
| People First Party | 10.55% | 0 | 5.95% |
| Independent/Others | - | 0 | 32.71% |
Results of the primary
2018 Kuomintang Taipei City mayoral primary results :
| Candidates | Place | TVBS | Apollo Survey & Research | UDN | Aggregated Result |
| Ting Shou-chung | Nominated | 48.395% | 46.778% | 47.741% | 47.634% |
| Sun Ta-chien | 2nd | 17.891% | 18.845% | 17.878% | 18.205% |
| Chang Hsien-yao | 3rd | 17.073% | 17.909% | 16.723% | 17.235% |
| Chung Siao Ping | 4th | 16.651% | 16.468% | 17.658% | 16.926% |
2018 Democratic Progressive Party Taipei City mayoral primary results :
| Candidates | Place | Results |
| Pasuya Yao | Called in | Results not released |
| Annette Lu | | Results not released |
Opinion polls
| Poll organization | Date of completion | Ko Wen-je | Ting Shou-chung | Pasuya Yao | Not sure | Lead |
| TVBS | May 4, 2017 | 40% | 39% | 9% | 12% | 1% |
| TVBS | May 4, 2017 | 46% | 41% | – | 13% | 5% |
| Real Survey | May 23, 2017 | 39.9% | 43.1% | － | 17% | 3.2% |
| TISR | June 21, 2017 | 43.3% | 32.2% | – | 24.5% | 11.1% |
| Formosa | July 13, 2017 | 47.2% | 31.3% | – | 21.5% | 15.9% |
| Sanli | July 17, 2017 | 32.1% | 31.8% | 15.7% | 20.4% | 0.3% |
| ETtoday | September 20, 2017 | 72.5% | 17.5% | – | 10% | 55% |
| TCF | November 23, 2017 | 42.7% | 36.9% | – | 20.4% | 5.8% |
| Formosa | December 12, 2017 | 46.0% | 32.7% | – | 21.3% | 15.3% |
| Formosa | December 12, 2017 | 43.1% | 28.2% | 11.4% | 17.3% | 14.9% |
| TISR$^1$ Archived 2018-05-02 at the Wayback Machine | December 14, 2017 | 36.6% | 15.7% | 6.8% | 22% | 20.9% |
| Real Survey | February 9, 2018 | 44.2% | 26.6% | 16.1% | 13.1% | 17.6% |
| Sanli | February 12, 2018 | 39.8% | 30.3% | 13.9% | 16% | 9.5% |
| Sanli | February 12, 2018 | 47.0% | 39.1% | – | 13.9% | 7.9% |
| Focus Survey Research | February 25, 2018 | 47.6% | 25.6% | 15.2% | 11.6% | 22% |
| Focus Survey Research | February 25, 2018 | 54.7% | 31.1% | – | 14.2% | 23.6% |
| ETtoday | February 26, 2018 | 44.0% | 39.2% | – | 16.8% | 4.8% |
| GSSC | March 7, 2018 | 47.5% | 40.7% | – | 11.8% | 6.8% |
| GSSC | March 7, 2018 | 42.4% | 30.9% | 13.5% | 13.2% | 11.5% |
| Evidence-Based Survey and Research | April 25, 2018 | 35.0% | 25.6% | 21.5% | 17.9% | 9.4% |
| Apollo | May 2, 2018 | 33.0% | 33.6% | － | 33.4% | 0.6% |
| TVBS | May 2, 2018 | 31% | 38% | － | 31% | 7% |
| Liberty Times Net | May 2, 2018 | 30.69% | 37.47% | － | 31.84% | 6.78% |
| ETtoday | May 3, 2018 | 48.5% | 32.1% | 4.0% | 15.4% | 16.4% |
| DPP | May 3, 2018 | 35% | 30% | 25% | 10% | 5% |
| Green Party | May 3, 2018 | 31% | 35% | 25% | 9% | 4% |
| China Times | May 13, 2018 | 36.5% | 42.7% | － | 31% | 6.2% |
| Formosa | May 14, 2018 | 41.0% | 40.9% | － | 18.1% | 0.1% |
| Formosa | May 14, 2018 | 35.2% | 33.1% | 15.0% | 16.7% | 2.1% |
| ETtoday | May 17, 2018 | 36.4% | 37.5% | 13.4% | 12.7% | 1.1% |
| Liberty Times Net | May 21, 2018 | 39% | 41% | - | 19% | 2% |
| Liberty Times Net | May 21, 2018 | 38% | 39% | 8% | 16% | 1% |
| Taiwan Brain Trust | May 22, 2018 | 41.3% | 36.1% | － | 22.6% | 5.2% |
| Taiwan Brain Trust | May 22, 2018 | 39.4% | 33.6% | 13.8% | 13.2% | 5.8% |
| Hsih Shin University | May 28, 2018 | 29.0% | 29.1% | 13.5% | 28.4% | 0.1% |
| TVBS | June 1, 2018 | 31% | 33% | 13% | 23% | 2% |
| China Times | June 4, 2018 | 34.7% | 40.2% | 12.2% | 12.9% | 5.5% |
| CM Media | July 11, 2018 | 38.9% | 27.5% | 11.0% | 22.6% | 9.4% |
| Formosa$^2$ | July 12, 2018 | 38.7% | 30.5% | 16.4% | 6.2% | 8.2% |
| Polls$^3$ | July 16, 2018 | 43.4% | 31.8% | 8.9% | 15.9% | 11.6% |
| TVBS | July 24, 2018 | 40.0% | 30.0% | 11.0% | 19.0% | 10% |
| ETtoday | July 30, 2018 | 42.4% | 30.9% | 5.4% | 21.3% | 11.5% |
| Liberty Times Net$^4$ | September 1, 2018 | 33.43% | 24.71% | 14.90% | 26.96% | 8.72% |
| ETtoday$^5$ | September 9, 2018 | 41.7% | 29.9% | 8.4% | 13.3% | 11.8% |
| Shih Hsin University$^6$ | September 12, 2018 | 34.9% | 30.8% | 10.4% | 21.9% | 4.1% |
| TVBS$^7$ | September 16, 2018 | 37% | 32% | 11% | 20% | 5% |
| Formosa$^8$ | September 18, 2018 | 34.6% | 23.5% | 11.1% | 23.6% | 11.1% |
| UDN$^9$ | September 19, 2018 | 37% | 29% | 8% | 25% | 8% |
| Sanli$^{10}$ | September 29, 2018 | 36.1% | 25.8% | 11.1% | 25.2% | 10.3% |
| Apollo | October 5, 2018 | 41.6% | 27.2% | 15.2% | 16% | 14.4% |
| Formosa$^{11}$ | October 12, 2018 | 37.5% | 25.0% | 11.3% | 14.7% | 12.5% |
| Taiwan Public Opinion Foundation$^{12}$ | October 16, 2018 | 42.1% | 28.5% | 11.6% | 15.2% | 13.6% |
| TVBS$^{13}$ | October 25, 2018 | 40% | 33% | 12% | 13% | 7% |
| TVBS$^{14}$ | October 25, 2018 | 34% | 29% | 11% | 12% | 5% |
| Taiwan Competitiveness Forum $^{15}$ | October 29, 2018 | 36.6% | 34.3% | 12.7% | 15.7% | 2.3% |
| UDN$^{16}$ | October 30, 2018 | 38% | 35% | 8% | 18% | 3% |
| Democratic Progressive Party$^{17}$ | October 31, 2018 | 35.9% | 24.4% | 19.7% | 17.1% | 11.5% |
| Shih Shin University$^{18}$ Archived 2018-11-09 at the Wayback Machine | November 7, 2018 | 34.1% | 31.4% | 7.1% | 25.9% | 2.7% |
| Formosa$^{19}$ | November 7, 2018 | 38.6% | 27.1% | 8.3% | 18.0% | 11.5% |
| ETtoday | November 8, 2018 | 38.4% | 36.8% | 7.6% | 17.2% | 1.6% |
| China Times | November 11, 2018 | 33.6% | 32.8% | 14.6% | 17.1% | 0.8% |
| TVBS | November 11, 2018 | 39% | 36% | 12% | 13% | 3% |
| Notes – results for independent candidates: $^1$： Lee Si-kuen（1.4%） $^2$： Lee Si-kuen（1.5%） $^3$： Lee Si-kuen（2.8%） $^4$： Lee Si-kuen（2.35%） $^5$： Lee Si-kuen（1.1%） $^6$： Lee Si-kuen（1.9%）； Wu E-yang（0.1%） $^7$： Lee Si-kuen（1%）； Wu E-yang（0.1%） $^8$： Lee Si-kuen（1.3%）； Wu E-yang（0.1%） $^9$： Lee Si-kuen（1%）； Wu E-yang（1%） $^{10}$： Lee Si-kuen（1.5%）； Wu E-yang（0.3%） $^{11}$： Lee Si-kuen（1.9%）； Wu E-yang（0.7%） $^{12}$： Lee Si-kuen（2.4%）； Wu E-yang（0.2%） $^{13}$： Lee Si-kuen（1.0%）； Wu E-yang（0.0%） $^{14}$： Lee Si-kuen（1.0%）； Wu E-yang（0.0%） $^{15}$： Lee Si-kuen（0.6%）； Wu E-yang（0.1%） $^{16}$： Lee Si-kuen（1.0%）； Wu E-yang（0.1%） $^{17}$： Lee Si-kuen（2.9%） $^{18}$： Lee Si-kuen（1.4%）； Wu E-yang（0.1%） $^{19}$： Lee Si-kuen（1.5%）； Wu E-yang（0.2%） |||||||
Predictions
| Poll organization | Date of completion | Turnout | Ko Wen-je | Ting Shou-chung | Pasuya Yao | Lee Si-kuen |
| Formosa | September 20, 2018 | >70% | 47.4%-49.6% | 30.7%-33.1% | 16.9%-19.0% | 1.3%-1.7% |
| TVBS | October 25, 2018 | 71% | 44% | 40% | 15% | - |
| Formosa | November 7, 2018 | >70% | 49.1% ~ 52.7% | 30.2% ~ 34.4% | 14.1% ~ 16.1% | - |
| TVBS | November 11, 2018 | 73% | 46% | 40% | 13% | - |
Results According to Civil Servants Election And Recall Act article 69, because Independent Ko Wen-je and Kuomintang's Ting Shou-chung vote percentages are within 0.30 margin, Kuomintang's Ting Shou-chung was entitled to, and did, call for a recount.
| District | Wu E-yang | Ting Shou-chung | Pasuya Yao | Ko Wen-je | Lee Si-kuen |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Songshan District (松山區) | 428 | 0.40 | 46,381 | 43.36 | 17,387 | 16.25 | 42,356 | 39.60 | 420 | 0.39 |
| Xinyi District (信義區) | 502 | 0.41 | 53,955 | 43.99 | 19,934 | 16.25 | 47,762 | 38.94 | 512 | 0.42 |
| Daan District (大安區) | 585 | 0.37 | 72,325 | 45.73 | 23,651 | 14.95 | 60,939 | 38.53 | 662 | 0.42 |
| Zhongshan District (中山區) | 476 | 0.39 | 46,746 | 38.38 | 23,483 | 19.28 | 50,604 | 41.55 | 491 | 0.40 |
| Zhongzheng District (中正區) | 370 | 0.46 | 33,897 | 41.83 | 12,633 | 15.59 | 33,752 | 41.65 | 378 | 0.47 |
| Datong District (大同區) | 266 | 0.38 | 20,763 | 29.69 | 16,896 | 24.16 | 31,679 | 45.29 | 339 | 0.48 |
| Wanhua District (萬華區) | 427 | 0.41 | 38,666 | 37.05 | 21,400 | 20.50 | 43,411 | 41.59 | 464 | 0.44 |
| Wenshan District (文山區) | 707 | 0.49 | 68,586 | 47.15 | 18,985 | 13.05 | 56,479 | 38.83 | 713 | 0.49 |
| Nangang District (南港區) | 287 | 0.43 | 26,282 | 39.45 | 10,830 | 16.26 | 28,896 | 43.37 | 325 | 0.49 |
| Neihu District (内湖區) | 548 | 0.37 | 61,566 | 41.02 | 21,746 | 14.49 | 65,599 | 43.70 | 639 | 0.43 |
| Shilin District (士林區) | 522 | 0.34 | 55,954 | 36.46 | 33,110 | 21.57 | 63,247 | 41.21 | 651 | 0.42 |
| Beitou District (北投區) | 499 | 0.37 | 52,445 | 39.08 | 24,586 | 18.32 | 56,096 | 41.80 | 578 | 0.43 |
2018 Taipei City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Wu E-yang (吳蕚洋) | Independent | 5,617 | 0.40% | |
| 2 | Ting Shou-chung (丁守中) | Kuomintang | 577,566 | 40.82% | |
| 3 | Pasuya Yao (姚文智) | Democratic Progressive Party | 244,641 | 17.29% | |
| 4 | Ko Wen-je (柯文哲) | Independent | 580,820 | 41.05% | |
| 5 | Lee Si-kuen (李錫錕) | Independent | 6,172 | 0.44% | |
| Total voters | Total voters | Total voters | 2,164,155 | 2,164,155 | 2,164,155 |
| Valid votes | Valid votes | Valid votes | 1,414,816 | 1,414,816 | 1,414,816 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 65.37% | 65.37% | 65.37% |

### New Taipei

Political context prior to the elections
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 55% |
| Kuomintang | 2008 presidential election | 61% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 54.79% | 9 | 46.74% |
| Kuomintang | 33.34% | 2 | 40.12% |
| New Power Party | - | 1 | 4.13% |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 11.87% | 0 | 0.84% |
| Independent/Others | - | 0 | 8.17% |
Results of the primary
2018 Kuomintang New Taipei City mayoral primary results :
| Candidates | Place | Results |
| Hou You-yi | Nominated | 55.596% |
| Chou Hsi-wei | 2nd | 34.210% |
| Jin Jie-shou | 3rd | 10.194% |
2018 Democratic Progressive Party New Taipei City mayoral primary results :
| Candidates | Place | Result |
| Su Tseng-chang | Called In | Walkover |
Opinion polls
| Poll organization | Date of completion | Su Tseng-chang | Hou You-yi | Undecided | Lead |
| TVBS | December 6, 2017 | 39.0% | 48.0% | 13.0% | 9% |
| Formosa | January 12, 2018 | 41.7% | 41.5% | 17.8% | 0.2% |
| China Times | February 26, 2018 | 33.6% | 53.8% | 12.6% | 20.6% |
| ETtoday | March 1, 2018 | 27.4% | 51.4% | 21.2% | 24% |
| DPP | March 24, 2018 | 39.0% | 39.1% | 21.9% | 0.1% |
| Apollo | April 1, 2018 | 26.4% | 54.3% | 19.3% | 26.9% |
| Apple Daily | April 7, 2018 | 27.54% | 61.37% | 11.09% | 33.83% |
| Taiwan Nextgen Foundation | April 11, 2018 | 42.6% | 41.7% | 15.7% | 0.9% |
| ETtoday | April 11, 2018 | 22.7% | 46.4% | 30.9% | 23.9% |
| TVBS | April 12, 2018 | 32.0% | 40.0% | 28.0% | 8% |
| UDN | May 1, 2018 | 26.0% | 45.0% | 29.0% | 19% |
| China Times | May 1, 2018 | 27.1% | 50.6% | 22.3% | 23.5% |
| Taiwan Brain Trust | May 22, 2018 | 30.7% | 44.3% | 25% | 13.6% |
| Formosa | June 15, 2018 | 23.6% | 41.7% | 34.7% | 18.1% |
| TVBS | June 25, 2018 | 31.0% | 48.0% | 21.0% | 17% |
| Taiwan Nextgen Foundation | June 29, 2018 | 38.3% | 41.0% | 20.7% | 2.7% |
| TVBS | July 17, 2018 | 29.0% | 48.0% | 23.0% | 19% |
| CM Media | July 26, 2018 | 31.1% | 46.3% | 22.6% | 15.2% |
| Taiwan Brain Trust | July 27, 2018 | 40.6% | 42.6% | 16.8% | 2% |
| ETtoday | August 10, 2018 | 24.2% | 45.2% | 30.6% | 11% |
| Taiwan Think Tank | August 31, 2018 | 43.2% | 43.9% | 12.9% | 0.7% |
| Liberty Times Net | September 7, 2018 | 30.89% | 39.86% | 29.25% | 8.97% |
| Shih Hsin University Archived 2018-09-17 at the Wayback Machine | September 14, 2018 | 29.4% | 40.2% | 30.4% | 10.8% |
| Formosa | September 14, 2018 | 28.2% | 41.7% | 18.1% | 13.5% |
| TVBS | September 16, 2018 | 32% | 48% | 20% | 16% |
| UDN | September 17, 2018 | 24% | 48% | 28% | 24% |
| Taiwan Think Tank | September 22, 2018 | 40.9% | 44.3% | 14.8% | 4.6% |
| Apollo | October 7, 2018 | 32.8% | 49.4% | 15.6% | 16.6% |
| DPP Archived 2018-11-02 at the Wayback Machine | October 14, 2018 | 39.1% | 39.3% | 21.6% | 0.2% |
| Apollo | October 16, 2018 | 31% | 49.1% | 19% | 18.1% |
| TVBS | October 18, 2018 | 30% | 50% | 21% | 20% |
| Formosa | October 26, 2018 | 22.5% | 44.4% | 19% | 21.9% |
| UDN Archived 2018-11-05 at the Wayback Machine | November 2, 2018 | 26% | 54% | 20% | 29% |
| Sanli | November 3, 2018 | 39.2% | 40.2% | 20.6% | 1% |
| Shih Shin University Archived 2018-11-21 at the Wayback Machine | November 8, 2018 | 30.7% | 36.4% | 32.9% | 5.7% |
| ETtoday | November 8, 2018 | 34% | 39.9% | 26.1% | 5.9% |
| Sanli | November 12, 2018 | 43.7% | 44% | 12.3% | 0.3% |
| TVBS | November 12, 2018 | 34% | 48% | 18% | 14% |
Predictions
| Poll organization | Date of completion | Turnout | Hou You-yi | Su Tseng-chang |
| Formosa | September 20, 2018 | | 51.5% ~ 53% | 47% ~ 48.5% |
| TVBS | October 19, 2018 | 62% | 56% | 44% |
| TVBS | November 12, 2018 | 70% | 55% | 45% |
Results
| District | Su Tseng-chang | Hou You-yi |
| Votes | % | Votes | % |
| Banqiao District (板橋區) | 131,905 | 46.03 | 154,687 | 53.97 |
| Sanchong District (三重區) | 100,823 | 50.22 | 99,925 | 49.78 |
| Zhonghe District (中和區) | 80,552 | 36.69 | 139,022 | 63.31 |
| Yonghe District (永和區) | 38,286 | 32.54 | 79,362 | 67.46 |
| Xingzhuang District (新莊區) | 101,046 | 48.28 | 108,240 | 51.72 |
| Xindian District (新店區) | 49,933 | 31.27 | 109,759 | 68.73 |
| Shulin District (樹林區) | 41,600 | 45.87 | 49,090 | 54.13 |
| Yingge District (鶯歌區) | 20,360 | 46.51 | 23,419 | 53.49 |
| Sanxia District (三峽區) | 23,653 | 42.64 | 31,822 | 57.36 |
| Danshui District (淡水區) | 33,763 | 39.67 | 51,336 | 60.33 |
| Xizhi District (汐止區) | 38,639 | 38.72 | 61,139 | 61.28 |
| Ruifang District (瑞芳區) | 8,038 | 37.51 | 13,393 | 62.49 |
| Tucheng District (土城區) | 51,932 | 43.85 | 66,487 | 56.15 |
| Luzhou District (蘆洲區) | 48,350 | 50.56 | 47,271 | 49.44 |
| Wugu District (五股區) | 20,372 | 47.77 | 22,276 | 52.23 |
| Taishan District (泰山區) | 17,627 | 45.77 | 20,885 | 54.23 |
| Linkou District (林口區) | 20,883 | 40.92 | 30,150 | 59.08 |
| Shenkeng District (深坑區) | 5,153 | 40.03 | 7,720 | 59.97 |
| Shiding District (石碇區) | 2,488 | 52.27 | 2,272 | 47.73 |
| Pinglin District (坪林區) | 2,255 | 55.46 | 1,811 | 44.54 |
| Sanzhi District (三芝區) | 4,915 | 40.60 | 7,191 | 59.40 |
| Shimen District (石門區) | 2,928 | 41.30 | 4,162 | 58.70 |
| Bali District (八里區) | 8,982 | 46.00 | 10,545 | 54.00 |
| Pingxi District (平溪區) | 1,417 | 46.72 | 1,616 | 53.28 |
| Shuangxi District (雙溪區) | 2,423 | 44.18 | 3,062 | 55.82 |
| Gongliao District (貢寮區) | 3,698 | 54.21 | 3,123 | 45.79 |
| Jinshan District (金山區) | 5,344 | 46.11 | 6,246 | 53.89 |
| Wanli District (萬里區) | 4,928 | 42.95 | 6,547 | 57.05 |
| Wulai District (烏來區) | 1,399 | 35.23 | 2,572 | 64.77 |
2018 New Taipei City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Su Tseng-chang (蘇貞昌) | Democratic Progressive Party | 873,692 | 42.85% | |
| 2 | Hou You-yi (侯友宜) | Kuomintang | 1,165,130 | 57.15% | |
| Total voters | Total voters | Total voters | 3,264,128 | 3,264,128 | 3,264,128 |
| Valid votes | Valid votes | Valid votes | 2,038,822 | 2,038,822 | 2,038,822 |
| Invalid votes | Invalid votes | Invalid votes | 50,305 | 50,305 | 50,305 |
| Voter turnout | Voter turnout | Voter turnout | 62.46% | 62.46% | 62.46% |

### Taoyuan

Political context prior to the elections
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 1997 local election | 56% |
| Kuomintang | 2008 presidential election | 65% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 51.03% | 3 | 39.48% |
| Kuomintang | 34.39% | 2 | 45.20% |
| New Power Party | - | 0 | 0.78% |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 14.59% | 0 | - |
| Independent/Others | - | 1 | 14.54% |
Results of the primary
2018 Democratic Progressive Party Taichung City mayoral primary results :
| Candidates | Place | Result |
| Cheng Wen-tsan | Nominated | Walkover |
2018 Kuomintang Taoyuan City mayoral primary results :
| Candidates | Place | Results |
| Apollo Chen | Nominated | 35.689% |
| Lu Ming-zhe | 2nd | 33.067% |
| Yang Li-huan | 3rd | 31.245% |
Opinion polls
| Poll organization | Date of completion | Cheng Wen-tsan | Apollo Chen | Yang Li-huan | Not sure | Lead |
| TVBS | June 24, 2017 | 61% | 21% | - | 18% | 40% |
| Yam News | October 24, 2017 | 48.82% | 51.18% | - | 0% | 2.36% |
| GSSC | November 1, 2017 | 54.3% | 25.1% | - | 20.6% | 29.2% |
| TISR | December 13, 2017 | 53.6% | 20.2% | - | 26.2% | 33.4% |
| ETtoday | April 2, 2018 | 46.7% | 31.7% | - | 21.6% | 15% |
| Taiwan Brain Trust | May 22, 2018 | 61.4% | 17.8% | - | 20.8% | 43.6% |
| China Times | June 12, 2018 | 51.5% | 24.9％ | - | 21.5% | 26.6% |
| I'm Taiwanese | June 23, 2018 | 59.3% | 29.6％ | - | 11.1% | 29.7% |
| TVBS | July 20, 2018 | 56% | 20% | - | 24% | 36% |
| Liberty Times Net | August 10, 2018 | 56.2% | 16.0% | - | 27.8% | 40.2% |
| ETtoday$^1$ | August 20, 2018 | 50.7% | 23.8% | – | 25.5% | 26.9% |
| TVBS$^2$ | September 16, 2018 | 56% | 17% | 6% | 25.5% | 39% |
| Shih Hsin University$^3$ Archived 2018-09-22 at the Wayback Machine | September 4, 2018 | 42.3% | 18.5% | 5.4% | 33.7% | 23.8% |
| UDN$^4$ | September 25, 2018 | 51% | 16% | 6% | 26% | 35% |
| Shih Hsin University$^5$ | November 20, 2018 | 36.9% | 26.8% | 2.4% | 32.9% | 10.1% |
| Sanli$^6$ | November 7, 2018 | 58.1% | 16.9% | 4.5% | 18.0% | 41.2% |
| ETtoday | November 8, 2018 | 45.9% | 27.6% | -% | 26.5% | 18.3% |
| Note：* Opinion polls includes independent candidates. $^1$： Chu Mei-sheue（1.9%） $^2$： Chu Mei-sheue（0.1%）； Wu Fu-tun（0%） $^3$： Chu Mei-sheue（0.0%）； Wu Fu-tun（0.1%） $^4$： Chu Mei-sheue（0.3%）； Wu Fu-tun（0.1%） $^5$： Chu Mei-sheue（0.9%）； Wu Fu-tun（0.1%） $^6$： Chu Mei-sheue（2.4%）； Wu Fu-tun（0.1%） |||||||
Results
| District | Chu Mei-sheue | Apollo Chen | Yang Li-huan | Wu Fu-tun | Cheng Wen-tsan |
| District | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Taoyuan District (桃園區) | 4,084 | 2.10 | 73,799 | 37.98 | 14,752 | 7.59 | 424 | 0.22 | 101,241 | 52.11 |
| Zhongli District (中壢區) | 3,250 | 1.68 | 88,154 | 45.69 | 6,829 | 3.54 | 561 | 0.29 | 94,164 | 48.80 |
| Daxi District (大溪區) | 610 | 1.28 | 16,271 | 34.10 | 1,897 | 3.98 | 190 | 0.40 | 28,746 | 60.25 |
| Yangmei District (楊梅區) | 1,204 | 1.55 | 32,538 | 41.85 | 3,387 | 4.36 | 348 | 0.45 | 40,272 | 51.80 |
| Luzhu District (蘆竹區) | 1,610 | 2.23 | 24,164 | 33.50 | 4,197 | 5.82 | 214 | 0.30 | 41,938 | 58.15 |
| Dayuan District (大園區) | 795 | 1.77 | 13,865 | 30.80 | 2,508 | 5.57 | 201 | 0.45 | 27,652 | 61.42 |
| Guishan District (龜山區) | 1,372 | 1.89 | 26,791 | 36.96 | 4,071 | 5.62 | 256 | 0.35 | 39,998 | 55.18 |
| Bade District (八德區) | 1,633 | 1.74 | 36,314 | 38.61 | 4,174 | 4.44 | 273 | 0.29 | 51,667 | 54.93 |
| Longtan District (龍潭區) | 979 | 1.64 | 27,385 | 45.77 | 2,296 | 3.84 | 568 | 0.95 | 28,610 | 47.81 |
| Pingzhen District (平鎮區) | 1,694 | 1.58 | 45,697 | 42.62 | 3,846 | 3.59 | 483 | 0.45 | 55,507 | 51.77 |
| Xinwu District (新屋區) | 370 | 1.29 | 9,164 | 31.94 | 1,434 | 5.00 | 141 | 0.49 | 17,581 | 61.28 |
| Guanyin District (觀音區) | 556 | 1.64 | 10,126 | 29.80 | 1,833 | 5.39 | 176 | 0.52 | 21,285 | 62.65 |
| Fuxing District (復興區) | 43 | 0.61 | 2,966 | 42.35 | 294 | 4.20 | 32 | 0.46 | 3,669 | 52.38 |
2018 Taoyuan City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Chu Mei-sheue (朱梅雪) | Independent | 18,200 | 1.76% | |
| 2 | Apollo Chen (陳學聖) | Kuomintang | 407,234 | 39.42% | |
| 3 | Yang Li-huan (楊麗環) | Independent | 51,518 | 4.99% | |
| 4 | Wu Fu-tun (吳富彤) | Independent | 3,867 | 0.37% | |
| 5 | Cheng Wen-tsan (鄭文燦) | Democratic Progressive Party | 552,330 | 53.46% | |
| Total voters | Total voters | Total voters | 1,732,591 | 1,732,591 | 1,732,591 |
| Valid votes | Valid votes | Valid votes | 1,033,149 | 1,033,149 | 1,033,149 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 59.63% | 59.63% | 59.63% |

### Taichung

Political context prior to the elections
Taichung City is the second largest metropolis in Taiwan, serves as the economic, cultural and transportation hub in the central part of Taiwan. It was merged and reorganized at the end of 2010 by Taichung County and Taichung City forming Taichung City. The former Taichung County was controlled by the Kuomintang except in 1997, the Democratic Progressive Party's Liao Yung-lai was elected as the county mayor.
Taichung City before in the 1980s are held by Independent or Kuomintang's Zhang and Lai factions. In the 1980s, the Kuomintang changed its nomination strategy to regain its power, by choosing non-faction candidates defeated Tzeng Wen-po (曾文坡), who is seeking for re-election in 1981, starting a four straight terms in 16 years. In 1997, the Democratic Progressive Party's Chang Wen-ying was elected for Taichung City mayor due to the Pan blue coalition split.
In 2001, Kuomintang's Jason Hu was elected as Taichung City mayor until 2010's merger and won the third term as the first mayor of the newly formed Taichung City with 36,351 votes. In 2014, Democratic Progressive Party's candidate Lin Chia-lung won 57% of the votes, elected as the Taichung City mayor due to unhappiness towards the Kuomintang government.
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2014 local election | 57% |
| Kuomintang | 2008 presidential election | 60% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 55.01% | 4 | 39.26% |
| Kuomintang | 29.82% | 3 | 43.03% |
| New Power Party | - | 1 | 6.58% |
| Taiwan Solidarity Union | - | 0 | 5.92% |
| People First Party | 15.1731% | 0 | - |
| Independent | - | 0 | 5.21% |
Results of the primary
2018 Democratic Progressive Party Taichung City mayoral primary results :
| Candidates | Place | Result |
| Lin Chia-lung | Nominated | Walkover |
2018 Kuomintang Taichung City mayoral primary results :
| Candidates | Place | Results |
| Lu Shiow-yen | Nominated | 50.308% |
| Johnny Chiang | 2nd | 49.692% |
Opinion polls
| Poll organization | Dates conducted | Lin Chia-lung | Lu Shiow-yen | Not sure | Lead |
| TISR Archived 2018-02-10 at the Wayback Machine | July 20, 2017 | 40.1% | 28.8% | 31.1% | 11.3% |
| Apollo Archived 2018-02-10 at the Wayback Machine | August 3, 2017 | 44.2% | 32.2% | 23.4% | 12% |
| TVBS | August 29, 2017 | 52% | 32.0% | 16.0% | 20% |
| Sanli | September 5, 2017 | 49.5% | 23.8% | 26.7% | 15.7% |
| China Times | November 1, 2017 | 44.4% | 29.3% | 26.3% | 15.1% |
| ETtoday | November 3, 2017 | 37.0% | 34.1% | 28.9% | 2.9% |
| Formosa | November 7, 2017 | 37.4% | 33.1% | 29.5% | 4.3% |
| GSSC | November 28, 2017 | 52.1% | 28.0% | 19.9% | 24.1% |
| Sanli | December 6, 2017 | 47.7% | 25.3% | 27.0% | 22.4% |
| TISR | December 6, 2017 | 40.1% | 17.2% | 42.7% | 22.9% |
| Era Com | December 28, 2017 | 36.1% | 35.1% | 28.8% | 1% |
| Formosa | February 9, 2018 | 35.8% | 37.6% | 26.6% | 1.8% |
| China Times | February 12, 2018 | 36.4% | 30.6% | 33.0% | 5.8% |
| ETtoday | March 5, 2018 | 32.6% | 32.0% | 35.4% | 0.6% |
| ETtoday | March 14, 2018 | 47.1% | 33.7% | 19.2% | 13.4% |
| TISR | April 21, 2018 | 31.9% | 23.7% | 44.4% | 8.2% |
| Apollo | May 3, 2018 | 33.0% | 35.7% | 31.3% | 2.7% |
| Taiwan Brain Trust | May 22, 2018 | 43.0% | 32.2% | 24.8% | 10.8% |
| UDN | May 28, 2018 | 32.0% | 39.0% | 29.0% | 7% |
| Kuomintang | May 28, 2018 | 33.0% | 39.7% | 27.3% | 6.7% |
| TVBS | July 20, 2018 | 33.0% | 39.0% | 28.0% | 6% |
| Taiwan Brain Trust | July 31, 2018 | 37.8% | 35.6% | 26.6% | 2.2% |
| CM Media | July 31, 2018 | 43.9% | 31.1% | 25.0% | 12.8% |
| Cross Strait Association | July 31, 2018 | 43.2% | 24.4% | 32.4% | 18.8% |
| Taiwan Competitiveness Forum | August 10, 2018 | 35.8% | 38.0% | 28.0% | 2.2% |
| ETtoday | August 14, 2018 | 31.0% | 35.6% | 23.7% | 4.6% |
| Liberty News Net | August 24, 2018 | 38.52% | 32.41% | 29.07% | 6.11% |
| Taiwan Brain Trust | August 27, 2018 | 42% | 33.5% | 24.5% | 8.5% |
| UDN | September 13, 2018 | 33% | 34% | 32% | 1% |
| TISR | September 15, 2018 | 26.8% | 28.6% | 32.8% | 1.8% |
| Shih Shin University$^3$ | September 15, 2018 | 30.3% | 30.9% | 38.7% | 0.6% |
| TVBS$^4$ | September 16, 2018 | 35% | 38% | 27% | 3% |
| China Times$^5$ | September 26, 2018 | 38.1% | 40.2% | 15.9% | 2.1% |
| Kuomintang | September 30, 2018 | 33.6% | 40.1% | 24.6% | 6.5% |
| CM Media$^6$ | October 4, 2018 | 40% | 34.6% | 22.3% | 5.4% |
| Taiwan Next Gen Foundation | October 14, 2018 | 41.4% | 31.1% | 27.5% | 10.3% |
| Formosa$^7$ | October 17, 2018 | 25.6% | 31% | 29.3% | 5.4% |
| TVBS$^8$ | October 22, 2018 | 36% | 44% | 19% | 8% |
| Taiwan Competitiveness Forum$^9$ Archived 2018-10-30 at the Wayback Machine | October 27, 2018 | 27.1% | 34.4% | 30.3% | 7.3% |
| Formosa$^{10}$ | November 1, 2018 | 28.7% | 35.7% | 21.7% | 7% |
| CM Media$^{10}$ | November 3, 2018 | 39.2% | 33.4% | 23% | 5.8% |
| ETtoday$^{12}$ | November 4, 2018 | 31.8% | 42.6% | 19.6% | 10.8% |
| UDN$^{13}$ | November 5, 2018 | 30% | 43% | 25% | 13% |
| Sanli$^{14}$ | November 6, 2018 | 45.1% | 34% | 18.3% | 11.1% |
| ETtoday | November 8, 2018 | 31.7% | 45.4% | 22.9% | 13.7% |
| Shih Shin University$^{15}$ | November 10, 2018 | 32.0% | 34.4% | 32.8% | 2.4% |
| Taiwan Next Gen Foundation | November 11, 2018 | 41.4% | 35.6% | 23% | 5.8% |
| TVBS$^{16}$ | November 12, 2018 | 39% | 41% | 19% | 2% |
| Note：* Opinion polls includes independent candidates. $^1$： Sung Antony（0.1%） $^2$： Sung Antony（2.3%） $^3$： Sung Antony（1.1%） $^4$： Sung Antony（3%） $^5$： Sung Antony（4.6%） $^6$： Sung Antony（1.6%） $^7$： Sung Antony（3.3%） $^8$： Sung Antony（1.0%） $^9$： Sung Antony（2.4%） $^{10}$： Sung Antony（2.4%） $^{11}$： Sung Antony（2.7%） $^{12}$： Sung Antony（1.4%） $^{13}$： Sung Antony（2.0%） $^{14}$： Sung Antony（2.5%） $^{15}$： Sung Antony（0.8%） $^{16}$： Sung Antony（1.0%） $_a$：Negative Vote Association ||||||
Predictions
| Poll organization | Date of completion | Turnout | Lu Shiow-yen | Lin Chia-lung | Sung Antony |
| TVBS | October 22, 2018 | 71% | 50% | 49% | 1% |
| Formosa | October 26, 2018 | 83.9% | 49% ~ 51.4% | 45% ~ 47.2% | 2.9% ~ 4.3% |
Results
| District | Sung Antony | Lin Chia-lung | Lu Shiow-yen |
| District | Votes | % | Votes | % | Votes | % |
| Central District (中區) | 86 | 0.94 | 4,173 | 45.77 | 4,859 | 53.29 |
| East District (東區) | 458 | 1.10 | 19,078 | 45.87 | 22,055 | 53.03 |
| South District (南區) | 658 | 0.99 | 28,330 | 42.77 | 37,250 | 56.24 |
| West District (西區) | 618 | 1.03 | 25,616 | 42.86 | 33,534 | 56.11 |
| North District (北區) | 745 | 0.97 | 30,187 | 39.36 | 45,769 | 59.67 |
| Xitun District (西屯區) | 1,083 | 0.97 | 43,307 | 38.73 | 67,437 | 60.30 |
| Nantun District (南屯區) | 914 | 1.08 | 34,396 | 40.73 | 49,134 | 58.19 |
| Beitun District (北屯區) | 1,268 | 0.91 | 53,504 | 38.42 | 84,485 | 60.67 |
| Fengyuan District (豐原區) | 986 | 1.10 | 42,504 | 47.27 | 46,436 | 51.64 |
| Dongshi District (東勢區) | 330 | 1.13 | 10,727 | 36.64 | 18,216 | 62.23 |
| Dajia District (大甲區) | 484 | 1.15 | 18,523 | 44.14 | 22,958 | 54.71 |
| Qingshui District (清水區) | 525 | 1.07 | 22,912 | 46.80 | 25,523 | 52.13 |
| Shalu District (沙鹿區) | 530 | 1.10 | 20,835 | 43.27 | 26,784 | 55.63 |
| Wuqi District (梧棲區) | 365 | 1.19 | 14,663 | 47.67 | 15,729 | 51.14 |
| Houli District (后里區) | 420 | 1.36 | 12,815 | 41.46 | 17,677 | 57.18 |
| Shengang District (神崗區) | 424 | 1.16 | 18,095 | 49.65 | 17,928 | 49.19 |
| Tanzi District (潭子區) | 581 | 1.01 | 24,836 | 43.30 | 31,938 | 55.68 |
| Daya District (大雅區) | 592 | 1.21 | 20,342 | 41.74 | 27,797 | 57.04 |
| Xinshe District (新社區) | 209 | 1.39 | 6,009 | 40.10 | 8,767 | 58.51 |
| Shigang District (石岡區) | 110 | 1.21 | 3,571 | 39.35 | 5,393 | 59.43 |
| Waipu District (外埔區) | 215 | 1.17 | 7,124 | 38.76 | 11,040 | 60.07 |
| Da'an District (大安區) | 148 | 1.24 | 5,009 | 42.13 | 6,732 | 56.62 |
| Wuri District (烏日區) | 465 | 1.15 | 16,911 | 41.93 | 22,951 | 56.91 |
| Dadu District (大肚區) | 388 | 1.22 | 13,558 | 42.68 | 17,821 | 56.10 |
| Longjing District (龍井區) | 572 | 1.38 | 18,048 | 43.62 | 22,757 | 55.00 |
| Wufeng District (霧峰區) | 415 | 1.11 | 16,151 | 43.07 | 20,936 | 55.83 |
| Taiping District (太平區) | 1,057 | 1.12 | 40,025 | 42.27 | 53,613 | 56.62 |
| Dali District (大里區) | 1,202 | 1.14 | 46,571 | 44.23 | 57,527 | 54.63 |
| Heping District (和平區) | 71 | 1.01 | 2,035 | 28.84 | 4,950 | 70.15 |
2018 Taichung City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Sung Antony (宋原通) | Independent | 15,919 | 1.09% | |
| 2 | Lin Chia-lung (林佳龍) | Democratic Progressive Party | 619,855 | 42.35% | |
| 3 | Lu Shiow-yen (盧秀燕) | Kuomintang | 827,996 | 56.57% | |
| Total voters | Total voters | Total voters | 2,213,789 | 2,213,789 | 2,213,789 |
| Valid votes | Valid votes | Valid votes | 1,463,770 | 1,463,770 | 1,463,770 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 66.12% | 66.12% | 66.12% |

### Tainan

Political context prior to the elections
Tainan City is located in Taiwan's Chia-Nan Plain, is a cultural capital for its history. Tainan City was merged and reorganized at the end of 2010, merging with Tainan County of Taiwan Province.
The original Tainan County in the 1990s, Kuomintang local faction took turns taking control. However, Tainan County turned blue to green until Democratic Progressive Party's candidate Mark Chen became the mayor in 1993 until the merger between the county and the city was since led by the Democratic Progressive Party.
The original Tainan City was dominated by Independents and the Kuomintang government for many years before the 1990s. Since 1997, the Democratic Progressive Party candidate Helen Chang was elected mayor, the former Tainan City since had been governed by the Democratic Progressive Party at the county level. After the merger of counties and cities in 2010, the DPP's William Lai was also elected as mayor.
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2014 local election | 73% |
| Kuomintang | 2008 presidential election | 46% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 67.52% | 5 | 69.95% |
| Kuomintang | 22.07% | 0 | 24.80% |
| New Power Party | - | 0 | 0.69% |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 10.41% | 0 | - |
| Independent/Others | - | 0 | 4.56% |
Results of the primary
2018 Democratic Progressive Party Tainan City mayoral primary results :
| Candidates | Place | Results |
| Huang Wei-cher | Nominated | 41.58% |
| Chen Ting-fei | 2nd | 28.17% |
| Yen Chun-zuo | 3rd | 6.72% |
| Wang Ding-yu | 4th | 5.13% |
| Li Jun-yi | 5th | 2.11% |
| Yeh Yi-jin | 6th | 0.76% |
2018 Kuomintang Tainan City mayoral primary results :
| Candidates | Place | Result |
| Kao Su-po | Nominated | Results not released |
| Huang Hsiu-shuang | 2nd | Results not released |
Opinion polls
| Poll organization | Dates conducted | Huang Wei-cher | Kao Su-po | Lin Yi-feng | Not sure | Lead |
| Taiwan Brain Trust$^1$ | May 22, 2018 | 42.3% | 18.7% | － | 30.6% | 23.6% |
| ETtoday | May 24, 2018 | 31.2% | 18.5% | 2.9% | 30.2% | 12.7% |
| China Times$^2$ | June 11, 2018 | 40.3% | 17.3% | － | 29.7% | 23% |
| Evidence-Based$^3$ | June 25, 2018 | 37.8% | 8.0% | 4.7% | 41.7% | 29.8% |
| TVBS$^4$ | July 6, 2018 | 41% | 15% | 7% | 20% | 26% |
| Taiwan Competitiveness Forum$^5$ Archived 2019-02-15 at the Wayback Machine | July 13, 2018 | 31.7% | 16.1% | 6.6% | 32.3% | 15.6% |
| Era Com$^6$ Archived 2018-07-18 at the Wayback Machine | July 14, 2018 | 36.66% | 13.09% | 8.21% | 28.99% | 23.57% |
| Evidence Based$^7$ | August 3, 2018 | 40.0% | 12.1% | 11.9% | 25.6% | 27.9% |
| Liberty News Net$^8$ | August 17, 2018 | 40.6% | 11.6% | 9.7% | 32% | 29% |
| ETtoday | August 27, 2018 | 31.3% | 15.9% | 14.1% | 26.7% | 15.4% |
| Real Survey$^9$ | September 6, 2018 | 24.5% | 16.4% | 12.0% | 39% | 8.1% |
| Evidence Based$^{10}$ | September 11, 2018 | 35.8% | 14.1% | 14.3% | 24.7% | 11.7% |
| Kao Su-po Campaign Team$^{11}$ | September 13, 2018 | 22.9% | 19.0% | 13.9% | 33.8% | 3.9% |
| DPP | September 13, 2018 | 39.9% | 14.7% | 14.6% | 26.5% | 25.2% |
| Shih Shin University$^{12}$ Archived 2018-09-20 at the Wayback Machine | September 13, 2018 | 23.9% | 13.8% | 5.9% | 48.1% | 10.1% |
| TVBS$^{13}$ | September 16, 2018 | 33% | 14% | 13% | 40% | 19% |
| UDN$^{14}$ | September 25, 2018 | 31% | 12% | 14% | 35% | 17% |
| Kao Su-po Campaign Team$^{15}$ Archived 2018-10-17 at the Wayback Machine | October 3, 2018 | 28.1% | 20.1% | 11.8% | 28.5% | 8% |
| ETtoday | October 7, 2018 | 30.8% | 19.1% | 14.2% | 22.1% | 11.7% |
| Evidence Based$^{16}$ | October 9, 2018 | 34.5% | 13.6% | 15.3% | 28.1% | 19.2% |
| Taiwan Competitiveness Forum$^{17}$ | October 19. 2018 | 27.5% | 20.3% | 10.9% | 31.6% | 7.2% |
| Evidence Based$^{18}$ | October 26. 2018 | 31.7% | 15.5% | 12.9% | 32.5% | 16.2% |
| China Times$^{19}$ | October 28. 2018 | 24.6% | 17.6% | 15.7% | 35.7% | 7% |
| Taiwan Competitiveness Forum$^{20}$ Archived 2018-11-08 at the Wayback Machine | November 4, 2018 | 29.1% | 25.9% | 12.6% | 18.9% | 3.2% |
| Shih Shin University$^{21}$ Archived 2018-11-09 at the Wayback Machine | November 5, 2018 | 25.6% | 21.1% | 6.5% | 40.7% | 4.5% |
| ETtoday | November 8, 2018 | 30.5% | 19.1% | 17.6% | 33.2% | 11.4% |
| Taiwan Competitiveness Forum$^{22}$ Archived 2018-11-12 at the Wayback Machine | November 9, 2018 | 30.4% | 31.6% | 10.6% | 16.7% | 1.2% |
| Note：* Opinion polls includes independent candidates. $^1$： Hsu Chun-hsin（8.4%） $^2$： Hsu Chun-hsin（5.9%） $^3$： Hsu Chun-hsin（3.4%） $^4$： Su Huan-chih（8%）； Hsu Chun-hsin（3%） $^5$： Su Huan-chih（6.2%）； Hsu Chun-hsin（3.7%） $^6$： Su Huan-chih（7.35%）； Hsu Chun-hsin（3.25%） $^7$： Su Huan-chih（3.5%）； Hsu Chun-hsin（3.7%） $^8$： Su Huan-chih（2.0%）； Hsu Chun-hsin（2.7%） $^9$： Su Huan-chih（4.3%）； Hsu Chun-hsin（3.8%） $^{10}$： Su Huan-chih（6.7%）； Hsu Chun-hsin（3.9%）； Chen Yung-ho（0.2%） $^{11}$： Su Huan-chih（6.2%）； Hsu Chun-hsin（4.2%）； Chen Yung-ho（0.4%） $^{12}$： Su Huan-chih（4.9%）； Hsu Chun-hsin（3%）； Chen Yung-ho（0.4%） $^{13}$： Su Huan-chih（6%）； Hsu Chun-hsin（3%）； Chen Yung-ho（0.4%） $^{14}$： Su Huan-chih（5%）； Hsu Chun-hsin（2%）； Chen Yung-ho（1%） $^{15}$： Su Huan-chih（4.8%）； Hsu Chun-hsin（5.8%）； Chen Yung-ho（1%） $^{16}$： Su Huan-chih（4.3%）； Hsu Chun-hsin（3.1%）； Chen Yung-ho（0.2%） $^{17}$： Su Huan-chih（4.6%）； Hsu Chun-hsin（4.4%）； Chen Yung-ho（0.7%） $^{18}$： Su Huan-chih（3%）； Hsu Chun-hsin（3.2%）； Chen Yung-ho（1.2%） $^{19}$： Su Huan-chih（3.2%）； Hsu Chun-hsin（2.5%）； Chen Yung-ho（0.6%） $^{20}$：（11.6%） $^{21}$： Su Huan-chih（4.9%）； Hsu Chun-hsin（3.0%）； Chen Yung-ho（1.4%） $^{22}$：（8.6%） |||||||
Results
| District | Huang Wei-cher | Kao Su-po | Lin Yi-feng | Hsu Chun-hsin | Chen Yung-ho | Su Huan-chih |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Sinying District (新營區) | 13,462 | 35.26 | 14,120 | 36.98 | 4,359 | 11.42 | 1,616 | 4.23 | 3,176 | 8.32 | 1,448 | 3.79 |
| Yanshuei District (鹽水區) | 6,555 | 45.92 | 3,981 | 27.89 | 1,618 | 11.33 | 566 | 3.96 | 862 | 6.04 | 694 | 4.86 |
| Baihe District (白河區) | 7,130 | 46.44 | 4,715 | 30.71 | 1,371 | 8.93 | 562 | 3.66 | 705 | 4.59 | 871 | 5.67 |
| Liouying District (柳營區) | 5,212 | 42.68 | 3,630 | 29.72 | 1,578 | 12.92 | 506 | 4.14 | 777 | 6.36 | 510 | 4.18 |
| Houbi District (後壁區) | 6,345 | 45.95 | 3,940 | 28.53 | 1,458 | 10.56 | 552 | 4.00 | 662 | 4.79 | 852 | 6.17 |
| Dongshan District (東山區) | 4,627 | 42.01 | 3,742 | 33.97 | 1,111 | 10.09 | 495 | 4.49 | 475 | 4.30 | 565 | 5.13 |
| Madou District (麻豆區) | 11,716 | 48.58 | 5,630 | 23.34 | 2,086 | 8.65 | 1,402 | 5.81 | 2,343 | 9.71 | 941 | 3.90 |
| Xiaying District (下營區) | 5,492 | 42.59 | 3,767 | 29.21 | 1,449 | 11.24 | 664 | 5.15 | 1,031 | 8.00 | 492 | 3.82 |
| Lioujia District (六甲區) | 5,309 | 43.24 | 3,260 | 26.55 | 1,381 | 11.25 | 674 | 5.49 | 1,022 | 8.32 | 633 | 5.16 |
| Guantian District (官田區) | 5,514 | 45.37 | 3,107 | 25.56 | 1,265 | 10.41 | 678 | 5.58 | 1,025 | 8.43 | 565 | 4.65 |
| Danei District (大內區) | 2,271 | 39.13 | 1,687 | 29.07 | 673 | 11.60 | 397 | 6.84 | 481 | 8.29 | 295 | 5.08 |
| Jiali District (佳里區) | 12,783 | 40.53 | 9,178 | 29.10 | 3,005 | 9.53 | 2,001 | 6.34 | 3,366 | 10.67 | 1,205 | 3.82 |
| Syuejia District (學甲區) | 6,509 | 47.08 | 3,860 | 27.92 | 1,228 | 8.88 | 570 | 4.12 | 1,107 | 8.01 | 552 | 3.99 |
| Sigang District (西港區) | 6,041 | 43.79 | 3,593 | 26.05 | 1,387 | 10.06 | 722 | 5.23 | 1,536 | 11.14 | 515 | 3.73 |
| Cigu District (七股區) | 5,670 | 43.39 | 3,251 | 24.88 | 1,347 | 10.31 | 960 | 7.35 | 1,144 | 8.75 | 695 | 5.32 |
| Jiangjyun District (將軍區) | 5,438 | 45.68 | 3,109 | 26.12 | 1,115 | 9.37 | 873 | 7.33 | 912 | 7.66 | 457 | 3.84 |
| Beimen District (北門區) | 2,757 | 42.63 | 1,877 | 29.02 | 652 | 10.08 | 395 | 6.11 | 448 | 6.93 | 339 | 5.24 |
| Sinhua District (新化區) | 9,154 | 38.46 | 7,591 | 31.89 | 2,223 | 9.34 | 1,102 | 4.63 | 2,822 | 11.86 | 911 | 3.83 |
| Shanhua District (善化區) | 9,435 | 39.40 | 6,948 | 29.02 | 2,001 | 8.36 | 1,583 | 6.61 | 2,878 | 12.02 | 1,099 | 4.59 |
| Sinshih District (新市區) | 7,027 | 37.42 | 5,034 | 26.81 | 1,605 | 8.55 | 2,012 | 10.71 | 2,340 | 12.46 | 762 | 4.06 |
| Anding District (安定區) | 6,643 | 40.09 | 4,752 | 28.67 | 1,576 | 9.51 | 899 | 5.42 | 1,997 | 12.05 | 705 | 4.25 |
| Shanshang District (山上區) | 1,521 | 37.37 | 1,244 | 30.57 | 467 | 11.47 | 217 | 5.33 | 423 | 10.39 | 198 | 4.86 |
| Yujing District (玉井區) | 2,656 | 32.54 | 3,442 | 42.17 | 665 | 8.15 | 302 | 3.70 | 632 | 7.74 | 465 | 7.74 |
| Nansi District (楠西區) | 1,576 | 28.48 | 2,687 | 48.56 | 400 | 7.23 | 218 | 3.94 | 353 | 6.38 | 299 | 5.40 |
| Nanhua District (南化區) | 1,792 | 33.17 | 2,229 | 41.26 | 474 | 8.77 | 173 | 3.20 | 402 | 7.44 | 332 | 6.15 |
| Zuojhen District (左鎮區) | 1,233 | 41.80 | 939 | 31.83 | 195 | 6.61 | 211 | 7.15 | 221 | 7.49 | 151 | 5.12 |
| Rende District (仁德區) | 14,717 | 36.41 | 12,883 | 31.88 | 3,522 | 8.71 | 1,537 | 3.80 | 5,911 | 14.63 | 1,846 | 4.57 |
| Gueiren District (歸仁區) | 13,413 | 37.57 | 9,264 | 25.95 | 2,942 | 8.24 | 1,292 | 3.62 | 7,202 | 20.17 | 1,588 | 4.45 |
| Guanmiao District (關廟區) | 7,670 | 37.11 | 5,323 | 25.76 | 1,580 | 7.65 | 573 | 2.77 | 4,778 | 23.12 | 742 | 3.59 |
| Longci District (龍崎區) | 814 | 29.24 | 676 | 24.28 | 180 | 6.47 | 82 | 2.95 | 917 | 32.94 | 115 | 4.13 |
| Yongkang District (永康區) | 38,762 | 34.70 | 38,892 | 34.81 | 9,587 | 8.58 | 4,676 | 4.19 | 15,007 | 13.43 | 4,787 | 4.29 |
| East District (東區) | 28,636 | 32.27 | 36,041 | 40.61 | 5,457 | 6.15 | 3,522 | 3.97 | 11,681 | 13.16 | 3,410 | 3.84 |
| South District (南區) | 25,068 | 39.35 | 21,036 | 33.02 | 5,430 | 8.52 | 2,585 | 4.06 | 7,661 | 12.03 | 1,925 | 3.02 |
| North District (北區) | 22,694 | 34.49 | 24,690 | 37.52 | 4,510 | 6.85 | 2,851 | 4.33 | 8,547 | 12.99 | 2,515 | 3.82 |
| Annan District (安南區) | 36,754 | 38.42 | 27,865 | 29.13 | 9,225 | 9.64 | 4,807 | 5.02 | 13,357 | 13.96 | 3,655 | 3.82 |
| Anping District (安平區) | 10,276 | 34.24 | 11,056 | 36.84 | 2,479 | 8.26 | 1,034 | 3.45 | 4,075 | 13.58 | 1,088 | 3.63 |
| West Central District (中西區) | 14,846 | 37.54 | 13,835 | 34.98 | 2,552 | 6.45 | 1,859 | 4.70 | 4,904 | 12.40 | 1,556 | 3.93 |
2018 Tainan City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Huang Wei-cher (黃偉哲) | Democratic Progressive Party | 367,518 | 38.02% | |
| 2 | Kao Su-po (高思博) | Kuomintang | 312,874 | 32.37% | |
| 3 | Lin Yi-feng (林義豐) | Independent | 84,153 | 8.71% | |
| 4 | Hsu Chun-hsin (許忠信) | Independent | 45,168 | 4.67% | |
| 5 | Chen Yung-ho (陳永和) | Independent | 117,179 | 12.12% | |
| 6 | Su Huan-chih (蘇煥智) | Independent | 39,778 | 4.11% | |
| Total voters | Total voters | Total voters | 1,546,862 | 1,546,862 | 1,546,862 |
| Valid votes | Valid votes | Valid votes | 966,670 | 966,670 | 966,670 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 62.49% | 62.49% | 62.49% |

### Kaohsiung

Political context prior to the elections
Kaohsiung is the third largest city in Taiwan and capital of the political and economic center of the southern region. The special municipality city is merged in 2010 with Kaohsiung County from Taiwan Province. The former Kaohsiung County before the 1980s is led by the Kuomintang, and the independents until 1985 where Democratic Progressive Party has led the county until the merger of the county and city.
Since the implementation of local autonomy in 1950, the former Kaohsiung City has been led by the KMT except the 6th mayor Yang Jinhu, who was a non-KMT candidate. After Kaohsiung was elevated into a municipality in 1979, the mayor was appointed by the Central Government and opened up first election in 1994 where Kuomintang's Wu Den-yih was first elected mayor of the city. In 1998, the Democratic Progressive Party's Frank Hsieh won the mayoral election by a slim margin over the incumbent mayor Wu Den-yih, starting the DPP's straight 4 terms, 16 years rule until the merger.
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2014 local election | 68% |
| Kuomintang | 2008 legislative election | 51% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 63.39% | 9 | 61% |
| Kuomintang | 26.00% | 0 | 34.86% |
| New Power Party | - | 0 | 1.06% |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 10.60% | 0 | - |
| Independent/Others | - | 0 | 3.08% |
Results of the primary
2018 Democratic Progressive Party Kaohsiung City mayoral primary results :
| Candidates | Place | DPP | Focus Survey Research | Statinc | Aggregated Result |
| Chen Chi-mai | Nominated | 38.64% | 32.61% | 36.45% | 35.90% |
| None of the candidates | | 32.71% | 31.76% | 34.74% | 33.07% |
| Chao Tien-lin | 2nd | 12.63% | 17.95% | 12.77% | 14.45% |
| Lin Tai-hua | 3rd | 10.69% | 12.06% | 10.92% | 11.22% |
| Kuan Bi-ling | 4th | 5.33% | 5.61% | 5.12% | 5.35% |
2018 Kuomintang Kaohsiung City mayoral primary results :
| Candidates | Place | Result |
| Han Kuo-yu | Nominated | 64.898% |
| Arthur Chen | 2nd | 35.102% |
Opinion polls
| Poll organization | Dates conducted | Chen Chi-mai | Han Kuo-yu | Not sure | Lead |
| TVBS | August 15, 2017 | 59% | 31% | 10% | 28% |
| Taiwan Brain Trust | May 22, 2018 | 52% | 21% | 27% | 31% |
| China Times | May 29, 2018 | 39.5% | 33.1% | - | 6.4% |
| All Opinions | June 20, 2018 | 37.6% | 26.2% | 36.2% | 11.4% |
| GSSC | June 27, 2018 | 46.9% | 23.9% | 29.2% | 23% |
| ETtoday$^1$ | June 27, 2018 | 32.0% | 30.4% | 24.7% | 1.6% |
| TVBS | July 4, 2018 | 40% | 32% | 28% | 8% |
| GSSC | July 27, 2018 | 45.7% | 27.3% | 21.7% | 18.4% |
| Liberty Times Net | August 3, 2018 | 38.46% | 26.42% | 35.22% | 12.04% |
| Formosa | August 13, 2018 | 38.9% | 27.8% | 33.3% | 11.1% |
| Wu Yi-zheng Campaign Team | August 17, 2018 | 33.5% | 25.7% | 34% | 7.8% |
| ETtoday$^2$ | September 3, 2018 | 36.7% | 31% | 32.3% | 5.7% |
| TVBS$^3$ | September 16, 2018 | 39% | 35% | 26% | 4% |
| Shih Shin University$^4$ | September 16, 2018 | 33.8% | 31.2% | 35% | 2.6% |
| CM Media | September 18, 2018 | 41.2% | 35.5% | 22.9% | 5.7% |
| TISR$^5$ | September 19, 2018 | 41% | 30.2% | 25.9% | 10.8% |
| UDN$^6$ | September 20, 2018 | 34% | 32% | 31% | 2% |
| TVBS$^8$ | October 16, 2018 | 35% | 42% | 21% | 7% |
| Taiwan Next Gen Foundation$^9$ | October 19, 2018 | 39.8% | 32.5% | 24.7% | 7.3% |
| Taiwan Competitiveness Forum$^{10}$ Archived 2018-10-25 at the Wayback Machine | October 22, 2018 | 32.7% | 39% | 26.3% | 6.3% |
| Taiwan Competitiveness Forum$^{11}$ | October 31, 2018 | 32.3% | 43.1% | 22.7% | 10.8% |
| Apollo$^{12}$ | November 2, 2018 | 36.2% | 45.3% | 14.6% | 9.3% |
| Sanli$^{13}$ | November 4, 2018 | 44.3% | 43.2% | 11.1% | 1.1% |
| TVBS$^{14}$ | November 6, 2018 | 38% | 48% | 14% | 10% |
| Apollo$^{15}$ | November 7, 2018 | 37.6% | 40.4% | 10% | 2.8% |
| CM Media$^{16}$ | November 8, 2018 | 39.1% | 39.3% | 20.3% | 0.2% |
| ETtoday | November 8, 2018 | 36.6% | 42.6% | 20.8% | 6% |
| Taiwan Competitiveness Forum$^{17}$ Archived 2018-11-12 at the Wayback Machine | November 8, 2018 | 27.1% | 44.1% | 23.8% | 17% |
| UDN$^{18}$ | November 12, 2018 | 32% | 49% | 16% | 17% |
| Shih Shin University$^{19}$ | November 12, 2018 | 32.6% | 35.4% | 29.9% | 2.8% |
| Apollo | November 12, 2018 | 38.9% | 42.5% | 14.9% | 3.6% |
| Sanli$^{20}$ | November 12, 2018 | 43.6% | 40.5% | 13.9% | 3.1% |
| Note：* Opinion polls includes independent candidates. $^1$： Chu Mei-feng（1.1%） $^2$： Chu Mei-feng（0.6%） $^3$： Chu Mei-feng（0.1%）； Su Ying-guei（1%） $^4$： Chu Mei-feng（0.7%）； Su Ying-guei（0.4%） $^5$： Chu Mei-feng（0.4%）； Su Ying-guei（2.5%） $^6$： Chu Mei-feng（2%）； Su Ying-guei（1%） $^7$： Chu Mei-feng（1.1%）； Su Ying-guei（1.2%） $^8$： Chu Mei-feng（1%）； Su Ying-guei（1%） $^9$： Chu Mei-feng（1.7%）； Su Ying-guei（1.3%） $^{10}$： Chu Mei-feng（1.1%）； Su Ying-guei（0.8%） $^{11}$： Chu Mei-feng（0.8%）； Su Ying-guei（1.1%） $^{12}$： Chu Mei-feng（0.8%）； Su Ying-guei（2.1%） $^{13}$： Chu Mei-feng（0.7%）； Su Ying-guei（0.8%） $^{14}$： Chu Mei-feng（1%）； Su Ying-guei（0.3%） $^{15}$： Chu Mei-feng（1.1%）； Su Ying-guei（1.2%） $^{16}$： Chu Mei-feng（0.6%）； Su Ying-guei（0.7%） $^{17}$： Chu Mei-feng（0.5%）； Su Ying-guei（0.5%） $^{18}$： Chu Mei-feng（1%）； Su Ying-guei（2%） $^{19}$： Chu Mei-feng（1.5%）； Su Ying-guei（0.6%） $^{20}$： Chu Mei-feng（1.3%）； Su Ying-guei（0.7%） ||||||
Predictions
| Poll organization | Date of completion | Turnout | Chen Chi-mai | Han Kuo-yu |
| TVBS | October 16, 2018 | 67% | 49% | 49% |
| TVBS | November 6, 2018 | 72% | 47% | 52% |
Results
| District | Han Kuo-yu | Chen Chi-mai | Chu Mei-feng | Su Ying-guei |
| Votes | % | Votes | % | Votes | % | Votes | % |
| Yancheng District (鹽埕區) | 7,633 | 48.28 | 7,992 | 50.55 | 71 | 0.45 | 113 | 0.71 |
| Gushan District (鼓山區) | 45,816 | 57.04 | 33,547 | 41.77 | 267 | 0.33 | 691 | 0.86 |
| Zuoying District (左營區) | 68,255 | 61.99 | 40,526 | 36.81 | 346 | 0.31 | 978 | 0.89 |
| Nanzih District (楠梓區) | 59,478 | 56.58 | 44,288 | 42.13 | 379 | 0.36 | 973 | 0.93 |
| Sanmin District (三民區) | 105,406 | 52.79 | 91,617 | 45.88 | 772 | 0.39 | 1,872 | 0.94 |
| Sinsing District (新興區) | 16,776 | 53.34 | 14,237 | 45.26 | 107 | 0.34 | 334 | 1.06 |
| Cianjin District (前金區) | 9,120 | 53.83 | 7,608 | 44.91 | 53 | 0.31 | 161 | 0.95 |
| Lingya District (苓雅區) | 57,171 | 54.60 | 46,041 | 43.97 | 401 | 0.38 | 1,098 | 1.05 |
| Cianjhen District (前鎮區) | 59,572 | 52.53 | 52,376 | 46.19 | 472 | 0.42 | 982 | 0.87 |
| Cijin District (旗津區) | 7,993 | 45.49 | 9,360 | 53.27 | 95 | 0.54 | 124 | 0.71 |
| Siaogang District (小港區) | 47,806 | 51.70 | 43,464 | 47.00 | 433 | 0.47 | 764 | 0.83 |
| Fongshan District (鳳山區) | 118,466 | 56.54 | 88,437 | 42.21 | 881 | 0.42 | 1,739 | 0.83 |
| Linyuan District (林園區) | 20,149 | 47.40 | 21,847 | 51.40 | 219 | 0.52 | 293 | 0.69 |
| Daliao District (大寮區) | 35,636 | 52.17 | 31,773 | 46.51 | 372 | 0.54 | 533 | 0.78 |
| Dashu District (大樹區) | 12,945 | 48.33 | 13,493 | 50.38 | 174 | 0.65 | 173 | 0.65 |
| Dashe District (大社區) | 10,378 | 48.89 | 10,512 | 49.52 | 142 | 0.67 | 197 | 0.93 |
| Renwu District (仁武區) | 26,659 | 51.40 | 24,543 | 47.32 | 250 | 0.48 | 412 | 0.79 |
| Niaosong District (鳥松區) | 14,410 | 52.23 | 12,806 | 46.42 | 115 | 0.42 | 258 | 0.94 |
| Gangshan District (岡山區) | 32,410 | 54.93 | 25,829 | 43.78 | 313 | 0.53 | 446 | 0.76 |
| Ciaotou District (橋頭區) | 10,888 | 44.45 | 13,256 | 54.11 | 146 | 0.60 | 207 | 0.85 |
| Yanchao District (燕巢區) | 9,448 | 50.88 | 8,871 | 47.77 | 120 | 0.65 | 130 | 0.70 |
| Tianliao District (田寮區) | 2,252 | 43.58 | 2,768 | 53.56 | 135 | 2.61 | 13 | 0.25 |
| Alian District (阿蓮區) | 8,322 | 47.12 | 8,958 | 50.72 | 254 | 1.44 | 126 | 0.71 |
| Lujhu District (路竹區) | 16,545 | 52.43 | 14,407 | 45.66 | 319 | 1.01 | 284 | 0.90 |
| Hunei District (湖內區) | 9,133 | 49.67 | 8,903 | 48.42 | 187 | 1.02 | 164 | 0.89 |
| Qieding District (茄萣區) | 8,662 | 47.72 | 9,209 | 50.74 | 152 | 0.84 | 127 | 0.70 |
| Yong'an District (永安區) | 4,545 | 49.62 | 4,478 | 48.89 | 61 | 0.67 | 76 | 0.83 |
| Mituo District (彌陀區) | 6,756 | 52.77 | 5,871 | 45.86 | 86 | 0.67 | 89 | 0.70 |
| Ziguan District (梓官區) | 10,509 | 46.81 | 11,646 | 51.87 | 129 | 0.57 | 168 | 0.75 |
| Cishan District (旗山區) | 12,379 | 52.34 | 10,940 | 46.26 | 155 | 0.66 | 177 | 0.75 |
| Meinong District (美濃區) | 15,478 | 61.09 | 9,546 | 37.68 | 125 | 0.49 | 186 | 0.73 |
| Liouguei District (六龜區) | 4,084 | 54.29 | 3,315 | 37.68 | 64 | 0.85 | 59 | 0.78 |
| Jiasian District (六龜區) | 2,339 | 60.17 | 1,483 | 38.15 | 35 | 0.90 | 30 | 0.77 |
| Shanlin District (杉林區) | 4,129 | 56.45 | 3,076 | 42.05 | 53 | 0.72 | 57 | 0.78 |
| Neimen District (內門區) | 5,446 | 53.81 | 4,510 | 44.57 | 85 | 0.84 | 79 | 0.78 |
| Maolin District (茂林區) | 1,281 | 91.83 | 107 | 7.67 | 6 | 0.43 | 1 | 0.07 |
| Taoyuan District (桃源區) | 2,519 | 88.51 | 304 | 10.68 | 14 | 0.49 | 9 | 0.32 |
| Namasia District (那瑪夏區) | 1,751 | 85.08 | 295 | 14.33 | 10 | 0.49 | 2 | 0.10 |
2018 Kaohsiung City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Han Kuo-yu (韓國瑜) | Kuomintang | 892,545 | 53.87% | |
| 2 | Chen Chi-mai (陳其邁) | Democratic Progressive Party | 742,239 | 44.80% | |
| 3 | Chu Mei-feng (璩美鳳) | Independent | 7,998 | 0.48% | |
| 4 | Su Ying-guei (蘇盈貴) | Independent | 14,125 | 0.85% | |
| Total voters | Total voters | Total voters | 2,281,338 | 2,281,338 | 2,281,338 |
| Valid votes | Valid votes | Valid votes | 1,656,907 | 1,656,907 | 1,656,907 |
| Invalid votes | Invalid votes | Invalid votes | 20,743 | 20,743 | 20,743 |
| Voter turnout | Voter turnout | Voter turnout | 72.63% | 72.63% | 72.63% |

## Taiwan Province
### Keelung

Political context prior to the elections
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2014 local election | 53% |
| Kuomintang | 2008 legislative election | 68% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 48.22% | 1 | 41.45% |
| Kuomintang | 35.29% | 0 | 36.15% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 16.50% | 0 | 12.37% |
| Independent/Others | - | 0 | 10.03% |
Results of the primary
2018 Democratic Progressive Party Keelung City mayoral primary results :
| Candidates | Place | Result |
| Lin Yu-chang | Nominated | Walkover |
2018 Kuomintang Keelung City mayoral primary results :
| Candidates | Place | Results |
| Hsieh Li-kung | Nominated after negotiation | 39.92% |
| Song Wei-li | 1st but withdrew after negotiation | 41.49% |
| Wen-Chieh Dale Jieh | 3rd | 18.59% |
Opinion polls
| Poll organization | Dates conducted | Lin Yu-chang | Hsieh Li-kung | Not sure | Lead |
| Sanli | January 16, 2018 | 58% | 15.2% | 26.8% | 42.8% |
| ETtoday | March 30, 2018 | 44.1% | 24.0% | 31.9% | 20.1% |
| Apollo | July 5, 2018 | 50% | 15.9% | 34.1% | 34.1% |
| Evidence Based | October 20, 2018 | 54.1% | 19.8% | 26.1% | 34.3% |
| Real Survey | October 29, 2018 | 42.4% | 29.7% | 20.6% | 12.7% |
Results
| District | Hsieh Li-kung | Lin Yu-chang |
| Votes | % | Votes | % |
| Zhongzheng District (中正區) | 12,009 | 47.21 | 13,431 | 52.79 |
| Qidu District (七堵區) | 11,745 | 42.50 | 15,891 | 57.50 |
| Nuannuan District (暖暖區) | 9,222 | 46.76 | 10,500 | 53.24 |
| Ren'ai District (仁愛區) | 9,877 | 55.87 | 12,507 | 55.87 |
| Zhongshan District (中山區) | 11,424 | 45.51 | 13,678 | 54.49 |
| Anle District (安樂區) | 18,580 | 45.04 | 22,676 | 54.96 |
| Xinyi District (信義區) | 13,672 | 50.35 | 13,484 | 49.65 |
2018 Keelung City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Hsieh Li-kung (謝立功) | Kuomintang | 86,529 | 45.86% | |
| 2 | Lin Yu-chang (林右昌) | Democratic Progressive Party | 102,167 | 54.14% | |
| Total voters | Total voters | Total voters | 309,428 | 309,428 | 309,428 |
| Valid votes | Valid votes | Valid votes | 188,696 | 188,696 | 188,696 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 60.98% | 60.98% | 60.98% |

### Yilan County

Political context prior to the elections
Results of Past Yilan County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Liu Shou-ch'eng | Democratic Progressive Party |
| 2001 | Liu Shou-ch'eng | Democratic Progressive Party |
| 2005 | Lu Kuo-hua | Kuomintang |
| 2009 | Lin Tsung-hsien | Democratic Progressive Party |
| 2014 | Lin Tsung-hsien | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2014 local election | 64% |
| Kuomintang | 2008 legislative election | 53% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 62.06% | 1 | 53.68% |
| Kuomintang | 25.38% | 0 | 28.25% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 12.55% | 0 | - |
| Independent/Others | - | 0 | 18.07% |
Results of the primary
2018 Democratic Progressive Party Yilan County magistrate primary results :
| Candidates | Place | Result |
| Chen Ou-po | Nominated | Walkover |
2018 Kuomintang Yilan County magistrate primary results :
| Candidates | Place | Result |
| Lin Zi-miao | Called In | Walkover |
Opinion polls
| Poll organization | Dates conducted | Chen Ou-po | Lin Tzu-miao | Not sure | Lead |
| Apollo Archived 2018-01-31 at the Wayback Machine | April 14, 2017 | 18.2% | 28.6% | 53.2% | 10.4% |
| TVBS$^1$ | July 21, 2017 | 23% | 57% | 20% | 34% |
| Era Com | December 27, 2017 | 23.37% | 45.89% | 30.74% | 21.52% |
| ETtoday$^2$ | June 11, 2018 | 15.8% | 41.2% | 39.1% | 25.4% |
| ETtoday$^3$ | September 9, 2018 | 23.1% | 35.6% | 25.6% | 12.5% |
| Liberty Times Net$^4$ | September 21, 2018 | 23.38% | 37.61% | 34.03% | 14.23% |
| CM Media$^5$ | September 26, 2018 | 26.5% | 40.1% | 25.5% | 13.6% |
| UDN$^6$ | October 5, 2018 | 13% | 42% | 45% | 29% |
| TVBS$^7$ | October 7, 2018 | 19% | 47% | 28% | 28% |
| China Times$^8$ | October 27, 2018 | 14.3% | 44.6% | 36.2% | 30.3% |
| TISR$^9$ Archived 2018-11-13 at the Wayback Machine | November 11, 2018 | 24.3% | 42% | 25.9% | 17.7% |
| Chen Ou-po Campaign Team$^{10}$ | November 11, 2018 | 28.7% | 26.6% | 28.9% | 2.1% |
| Note：* Opinion polls includes independent candidates. $^1$： Lin Hsin-hua（7.0%） $^2$： Lin Hsin-hua（3.9%） $^3$： Lin Hsin-hua（4.4%）； Chen Qiu-jing（0.7%）； Lin Jin-kun（1.5%） $^4$： Lin Hsin-hua（4.38%）； Chen Qiu-jing（0.3%）； Lin Jin-kun（0.3%） $^5$： Lin Hsin-hua（5.8%）； Chen Qiu-jing（0.5%）； Lin Jin-kun（0.9%） $^6$： Lin Hsin-hua（5%）； Chen Qiu-jing（0.2%）； Lin Jin-kun（0.1%） $^7$： Lin Hsin-hua（5%）； Chen Qiu-jing（1%）； Lin Jin-kun（0.0%） $^8$： Lin Hsin-hua（3.1%）； Chen Qiu-jing（0%）； Lin Jin-kun（0.8%） $^9$： Lin Hsin-hua（4.6%）； Chen Qiu-jing（0.9%）； Lin Jin-kun（0.6%） $^{10}$： Lin Hsin-hua（15.8%） ||||||
Results
| District | Lin Hsin-hua | Lin Zi-miao | Chen Ou-po | Lin Jin-kun | Chen Qiu-jing |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Yilan City (宜蘭市) | 6,736 | 13.66 | 23,891 | 48.45 | 18,033 | 36.57 | 379 | 0.76 | 270 | 0.54 |
| Luodong Township (羅東鎮) | 3,872 | 11.05 | 18,457 | 52.71 | 18,033 | 35.39 | 163 | 0.46 | 128 | 0.36 |
| Su'ao Township (蘇澳鎮) | 2,266 | 9.87 | 11,341 | 49.43 | 8,995 | 39.20 | 185 | 0.80 | 154 | 0.67 |
| Toucheng Township (頭城鎮) | 1,415 | 8.25 | 9,405 | 54.90 | 5,973 | 34.86 | 167 | 0.97 | 171 | 0.99 |
| Jiaoxi Township (礁溪鄉) | 2,314 | 10.95 | 9,698 | 45.91 | 8,797 | 41.65 | 194 | 0.92 | 120 | 0.57 |
| Zhuangwei Township (壯圍鄉) | 1,581 | 10.34 | 6,978 | 45.66 | 6,509 | 42.59 | 125 | 0.82 | 90 | 0.59 |
| Yuanshan Township (員山鄉) | 1,974 | 10.77 | 7,844 | 42.78 | 8,154 | 44.47 | 264 | 1.44 | 101 | 0.55 |
| Dongshan Township (冬山鄉) | 3,138 | 10.94 | 13,141 | 45.83 | 12,023 | 41.93 | 206 | 0.72 | 168 | 0.59 |
| Wujie Township (五結鄉) | 1,415 | 11.84 | 10,354 | 47.07 | 8,782 | 39.93 | 142 | 0.65 | 112 | 0.51 |
| Sanxing Township (三星鄉) | 1,235 | 9.69 | 6,053 | 47.48 | 5,314 | 41.68 | 74 | 0.58 | 72 | 0.56 |
| Datong Township (大同鄉) | 149 | 3.81 | 3,360 | 86.02 | 374 | 9.58 | 9 | 0.23 | 14 | 0.36 |
| Nan'ao Township (南澳鄉) | 114 | 3.12 | 3,245 | 88.73 | 260 | 7.11 | 14 | 0.38 | 24 | 0.66 |
2018 Yilan County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Lin Hsin-hua (林信華) | Independent | 27,399 | 10.95% | |
| 2 | Lin Zi-miao (林姿妙) | Kuomintang | 123,767 | 49.48% | |
| 3 | Chen Ou-po (陳歐珀) | Democratic Progressive Party | 95,609 | 38.23% | |
| 4 | Lin Jin-kun (林錦坤) | Independent | 1,922 | 0.77% | |
| 5 | Chen Qiu-jing (陳秋境) | Independent | 1,424 | 0.57% | |
| Total voters | Total voters | Total voters | 373,510 | 373,510 | 373,510 |
| Valid votes | Valid votes | Valid votes | 250,121 | 250,121 | 250,121 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 66.97% | 66.97% | 66.97% |

### Hsinchu County

Political context prior to the elections
Results of Past Hsinchu County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Lin Kuang-hua | Democratic Progressive Party |
| 2001 | Cheng Yung-chin | Kuomintang |
| 2005 | Cheng Yung-chin | Kuomintang |
| 2009 | Chiu Ching-chun | Kuomintang |
| 2014 | Chiu Ching-chun | Kuomintang |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2010 legislative by-election | 56% |
| Kuomintang | 2008 presidential election | 74% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 42.52% | 0 | - |
| Kuomintang | 35.28% | 1 | 36.75% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 22.19% | 0 | - |
| Independent/Others | - | 0 | 63.25% |
Results of the primary
2018 Minkuotang Hsinchu County magistrate primary results :
| Candidates | Place | Result |
| Hsu Hsin-ying | Nominated | Walkover |
2018 Kuomintang Hsinchu County magistrate primary results :
| Candidates | Place | Results |
| Yang Wen-ke | Called In | Walkover |
| Lin Wei-chou | Failure to get party's nomination | - |
2018 Democratic Progressive Party Hsinchu County magistrate primary results :
| Candidates | Place | Result |
| Cheng Chao-fang | Called In | Walkover |
Opinion polls
| Poll organization | Dates conducted | Hsu Hsin-ying | Yang Wen-ko | Cheng Chao-fang | Not sure | Lead |
| Era Com Archived 2018-05-04 at the Wayback Machine | January 4, 2018 | 32.18% | 23.59% | - | 24.85% | 8.59% |
| China Times | January 26, 2018 | 17.1% | 12.1% | - | - | 5% |
| Apollo | June 16, 2018 | 20.1% | 27% | 4.7% | 39.8% | 6.9% |
| Apollo | June 21, 2018 | 18.3% | 21.3% | 4.5% | 38.4% | 3% |
| Era Com | June 22, 2018 | 40.2% | 23.3% | 8.82% | 18.39% | 16.9% |
| TVBS | June 29, 2018 | 31% | 27% | 9% | 32% | 4% |
| ETtoday | July 11, 2018 | 19.7% | 26.3% | 9.7% | 44.2% | 6.6% |
| ETtoday$^{Note}$ | July 27, 2018 | 27.5% | 23.6% | 6.5% | 17.1% | 3.9% |
| Apollo$^{Note}$ | August 1, 2018 | 30.5% | 25.9% | 7.2% | 19.2% | 4.6% |
| Daily View$^{Note}$ | August 19, 2018 | 34.8% | 24.47% | 21.74% | - | 10.33% |
| Focus Survey Research | August 24, 2018 | 37.2% | 26.7% | 12.0% | 23.1% | 10.5% |
| Apollo$^{Note}$ | August 25, 2018 | 20.4% | 16.9% | 6.2% | 31.1% | 3.5% |
| TVBS | August 31, 2018 | 28% | 25% | 13% | 34% | 3% |
| Era Com Archived 2018-09-12 at the Wayback Machine | September 10, 2018 | 32.56% | 23.25% | 9.11% | 35.08% | 9.29% |
| Taiwan Competitiveness Forum$^1$ Archived 2018-10-31 at the Wayback Machine | September 16, 2018 | 27.8% | 23.4% | 12.6% | 34.8% | 4.4% |
| UDN$^2$ | October 2, 2018 | 31% | 25% | 11% | 32% | 6% |
| TISR$^3$$_c$ | October 2, 2018 | 25.9% | 23.3% | 9.1% | 31.5% | 2.6% |
| Apollo$^4$ | October 22, 2018 | 24.8% | 27.5% | 10.2% | 28.7% | 2.7% |
| Taiwan Competitiveness Forum$^5$ Archived 2018-10-31 at the Wayback Machine | October 29, 2018 | 24.8% | 26% | 10.4% | 31.4% | 1.2% |
| UDN$^6$ | November 2, 2018 | 36% | 29% | 11% | 23% | 7% |
| Taiwan Competitiveness Forum$^7$ | November 7, 2018 | 25.4% | 31.7% | 11.7% | 26.3% | 6.3% |
| China Times$^8$ | November 9, 2018 | 26.3% | 28.7% | 10.5% | 25.7% | 2.4% |
| Era Com | November 11, 2018 | 27.56% | 33.41% | 12.21% | 26.82% | 5.85% |
| Trend Survey | November 11, 2018 | 28.8% | 33% | 14.8% | 23.4% | 4.2% |
| Cheng Chao-fang Campaign Team | November 11, 2018 | 30% | 27% | 23% | 20% | 3% |
| Note：* Opinion polls includes independent candidates. $^1$： Yeh Fang-tung（1.4%） $^2$： Yeh Fang-tung（1%） $^3$： Yeh Fang-tung（1.9%） $^4$： Yeh Fang-tung（0.6%） $^5$： Yeh Fang-tung（2.2%） $^6$： Yeh Fang-tung（1%） $^7$： Yeh Fang-tung（1.4%） $^8$： Yeh Fang-tung（1.3%） |||||||
| $^{Note}$: Poll conducted before Lin was withdraw race |||||||
Results
| District | Yang Wen-ke | Yeh Fang-tung | Cheng Chao-fang | Hsu Hsin-ying |
| District | Votes | % | Votes | % | Votes | % | Votes | % |
| Zhubei City (竹北市) | 27,664 | 33.50 | 1,901 | 2.30 | 21,725 | 26.31 | 31,292 | 37.89 |
| Zhudong Township (竹東鎮) | 19,629 | 42.05 | 792 | 1.70 | 13,531 | 28.99 | 12,724 | 27.26 |
| Xinpu Township (新埔鎮) | 35.99 | 42.05 | 317 | 1.63 | 6,239 | 32.16 | 5,861 | 30.21 |
| Guanxi Township (關西鎮) | 6,017 | 35.70 | 217 | 1.29 | 4,905 | 29.10 | 5,715 | 33.91 |
| Hukou Township (湖口鎮) | 15,866 | 39.87 | 702 | 1.76 | 10,043 | 25.24 | 13,182 | 33.13 |
| Zhubei City (新豐鄉) | 9,826 | 33.97 | 475 | 1.64 | 7,930 | 27.42 | 10,694 | 36.97 |
| Qionglin Township (芎林鄉) | 4,876 | 40.07 | 216 | 1.78 | 3,702 | 30.42 | 3,374 | 27.73 |
| Hengshan Township (橫山鄉) | 3,624 | 44.23 | 152 | 1.86 | 2,278 | 27.80 | 2,140 | 26.12 |
| Beipu Township (北埔鄉) | 2,769 | 46.27 | 115 | 1.92 | 1,741 | 29.09 | 1,359 | 22.71 |
| Baoshan Township (寶山鄉) | 4,172 | 45.93 | 133 | 1.46 | 2,465 | 27.14 | 2,313 | 25.47 |
| Emei Township (峨眉鄉) | 4,876 | 53.52 | 57 | 1.38 | 1,123 | 27.10 | 746 | 18.00 |
| Jianshi Township (尖石鄉) | 2,836 | 51.39 | 68 | 1.23 | 1,525 | 27.63 | 1,090 | 19.75 |
| Wufeng Township (五峰鄉) | 1,398 | 45.33 | 23 | 0.75 | 963 | 31.23 | 700 | 22.70 |
2018 Hsinchu County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Yang Wen-ke (楊文科) | Kuomintang | 107,877 | 38.20% | |
| 2 | Yeh Fang-tung (葉芳棟) | Independent | 5,168 | 1.83% | |
| 3 | Cheng Chao-fang (鄭朝方) | Democratic Progressive Party | 78,170 | 27.68% | |
| 4 | Hsu Hsin-ying (徐欣瑩) | Minkuotang | 91,190 | 32.29% | |
| Total voters | Total voters | Total voters | 427,652 | 427,652 | 427,652 |
| Valid votes | Valid votes | Valid votes | 282,405 | 282,405 | 282,405 |
| Invalid votes | Invalid votes | Invalid votes | 8,195 | 8,195 | 8,195 |
| Voter turnout | Voter turnout | Voter turnout | 66.03% | 66.03% | 66.03% |

### Hsinchu

Political context prior to the elections
Results of Past Hsinchu City Mayoral Elections :
| Year | Winning Candidate | Political Party |
| 1997 | James Tsai | Democratic Progressive Party |
| 2001 | Lin Junq-tzer | Kuomintang |
| 2005 | Lin Junq-tzer | Kuomintang |
| 2009 | Hsu Ming-tsai | Kuomintang |
| 2014 | Lin Chih-chien | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 1997 local election | 56% |
| Kuomintang | 2005 local election | 69% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 51.22% | 1 | 41.33% |
| Kuomintang | 32.42% | 0 | 36.46% |
| New Power Party | - | 0 | 16.56% |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 16.35% | 0 | 1.91% |
| Independent/Others | - | 0 | 3.74% |
Results of the primary
2018 Democratic Progressive Party Hsinchu City mayoral primary results :
| Candidates | Place | Result |
| Lin Chih-chien | Nominated | Walkover |
2018 Kuomintang Hsinchu City mayoral primary results :
| Candidates | Place | UDN | Apollo Survey & Research | TVBS | Aggregated Result |
| Hsu Ming-tsai | Nominated | 40.55% | 42.89% | 42.63% | 42.02% |
| Lin Geng-ren | 2nd | 36.15% | 34.63% | 34.62% | 35.13% |
| Li Guo-zhang | 3rd | 23.30% | 22.48% | 22.75% | 22.84% |
Opinion polls
| Poll organization | Dates conducted | Lin Chih-chien | Hsu Ming-tsai | Hsieh Wen-chin | Not sure | Lead |
| Trend | November 14, 2017 | 59.9% | 19.8% | - | 20.3% | 40.1% |
| Sanli | January 26, 2018 | 56.4% | 23.4% | - | 20.2% | 33% |
| ETtoday | March 27, 2018 | 51.4% | 12.0% | - | 36.6% | 39.4% |
| GVM | May 30, 2018 | 59.7% | 23.3% | - | 20% | 36.4% |
| Green Party | June 20, 2018 | 40.9% | 15.9% | - | 20% | 25% |
| Sanli | June 21, 2018 | 55.5% | 15.5% | - | 29% | 40% |
| China Times | July 7, 2018 | 48.4% | 15.3% | 9.5% | 26.8% | 33.1% |
| ETtoday | July 16, 2018 | 38.5% | 16.9% | 6.2% | 27.1% | 21.6% |
| Taiwan Green Party | August 24, 2018 | 48.5% | 13.6% | 7.9% | 30% | 34.9% |
| Democratic Progressive Party | September 3, 2018 | 45.6% | 13.2% | 9.9% | 31.3% | 32.4% |
| Focus Survey Research | October 21, 2018 | 40.6% | 17.1% | 14.5% | 27.8% | 23.5% |
| Focus Survey Research | November 6, 2018 | 40.6% | 17.6% | 13% | 28.8% | 23% |
Results
| District | Hsieh Wen-chin | Li Chi-qun | Huang Yuan-fu | Hsu Ming-tsai | Kuo Jung-jui | Lin Chih-chien |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| East District (東區) | 19,364 | 19.45 | 323 | 0.32 | 2,165 | 2.17 | 29,097 | 29.23 | 261 | 0.26 | 48,346 | 48.56 |
| North District (北區) | 17,017 | 22.39 | 236 | 0.31 | 1,053 | 1.39 | 20,850 | 27.43 | 195 | 0.26 | 36,655 | 48.23 |
| Xiangshan District (香山區) | 7,720 | 18.58 | 146 | 0.35 | 385 | 0.93 | 10,561 | 25.42 | 118 | 0.28 | 22,611 | 54.43 |
2018 Hsinchu City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Hsieh Wen-chin (謝文進) | Independent | 44,101 | 20.31% | |
| 2 | Li Chi-qun (李驥羣) | Independent | 705 | 0.32% | |
| 3 | Huang Yuan-fu (黃源甫) | Independent | 3,603 | 1.66% | |
| 4 | Hsu Ming-tsai (許明財) | Kuomintang | 60,508 | 27.87% | |
| 5 | Kuo Jung-jui (郭榮睿) | Independent | 574 | 0.26% | |
| 6 | Lin Chih-chien (林智堅) | Democratic Progressive Party | 107,612 | 49.57% | |
| Total voters | Total voters | Total voters | 338,323 | 338,323 | 338,323 |
| Valid votes | Valid votes | Valid votes | 217,103 | 217,103 | 217,103 |
| Invalid votes | Invalid votes | Invalid votes | 4,299 | 4,299 | 4,299 |
| Voter turnout | Voter turnout | Voter turnout | 64.17% | 64.17% | 64.17% |

### Miaoli County

Political context prior to the elections
Results of Past Miaoli County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Fu Hsueh-peng | Independent |
| 2001 | Fu Hsueh-peng | Independent |
| 2005 | Liu Cheng-hung | Kuomintang |
| 2009 | Liu Cheng-hung | Kuomintang |
| 2014 | Hsu Yao-chang | Kuomintang |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 45.45% | 0 | 40.44% |
| Kuomintang | 37.55% | 2 | 46.26% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 17.00% | 0 | - |
| Independent/Others | - | 0 | 13.30% |
Results of the primary
2018 Kuomintang Miaoli County magistrate primary results :
| Candidates | Place | Result |
| Hsu Yao-chang | Nominated | Walkover |
2018 Democratic Progressive Party Miaoli County magistrate primary results :
| Candidates | Place | Results |
| Hsu Ting-chen | | Supported by DPP |
Opinion polls
| Poll organization | Dates conducted | Hsu Yao-chang | Hsu Ting-chen | Not sure | Lead |
| GSSC | January 26, 2018 | 46.5% | 21.1% | 32.4% | 25.4% |
| China Times | June 13, 2018 | 56.9% | 17.6% | 25.5% | 39.3% |
| ETtoday | July 2, 2018 | 35.9% | 16.5% | 29.7% | 19.4% |
| China Times$^1$ | November 5, 2018 | 47.6% | 13.2% | 37.7% | 34.4% |
| Note：* Opinion polls includes independent candidates. $^1$： Huang Yu-yen（0.1%）, Zhu Tai-ping（0.5%） ||||||
Results
| District | Zhu Tai-ping | Hsu Ting-zhen | Huang Yu-yen | Hsu Yao-chang |
| District | Votes | % | Votes | % | Votes | % | Votes | % |
| Miaoli City (苗栗市) | 1,070 | 2.31 | 15,711 | 33.92 | 1,158 | 2.50 | 28,376 | 61.27 |
| Yuanli Township (苑裡鎮) | 732 | 2.81 | 10,002 | 38.35 | 1,023 | 3.92 | 14,322 | 54.92 |
| Tongxiao Township (通霄鎮) | 567 | 2.73 | 10,375 | 49.99 | 841 | 4.05 | 8,970 | 43.22 |
| Zhunan Township (竹南鎮) | 1,138 | 2.70 | 16,806 | 39.95 | 1,342 | 3.19 | 22,785 | 54.16 |
| Toufen City (頭份市) | 816 | 1.57 | 17,558 | 33.81 | 1,421 | 2.74 | 32,143 | 61.89 |
| Houlong Township (後龍鎮) | 489 | 2.29 | 10,631 | 49.69 | 717 | 3.35 | 9,556 | 44.67 |
| Zhuolan Township (卓蘭鎮) | 435 | 4.01 | 3,315 | 30.57 | 378 | 3.49 | 6,717 | 61.94 |
| Dahu Township (大湖鄉) | 305 | 3.50 | 2,791 | 32.07 | 225 | 2.59 | 5,382 | 61.84 |
| Gongguan Township (公館鄉) | 362 | 1.93 | 6,446 | 34.28 | 449 | 2.39 | 11,545 | 61.40 |
| Tongluo Township (銅鑼鄉) | 180 | 1.68 | 3,894 | 36.42 | 286 | 2.68 | 6,331 | 59.22 |
| Nanzhuang Township (南庄鄉) | 91 | 1.51 | 1,814 | 30.02 | 124 | 2.05 | 4,014 | 66.42 |
| Touwu Township (頭屋鄉) | 108 | 1.45 | 2,307 | 31.05 | 151 | 2.03 | 4,863 | 65.46 |
| Sanyi Township (三義鄉) | 178 | 1.80 | 3,540 | 35.78 | 330 | 3.34 | 5,845 | 59.08 |
| Xihu Township (西湖鄉) | 72 | 1.54 | 1,685 | 35.95 | 113 | 2.41 | 2,817 | 60.10 |
| Zaoqiao Township (造橋鄉) | 145 | 1.97 | 2,561 | 34.87 | 194 | 2.64 | 4,444 | 60.51 |
| Sanwan Township (三灣鄉) | 62 | 1.51 | 1,192 | 28.97 | 93 | 2.26 | 2,767 | 67.26 |
| Shitan Township (獅潭鄉) | 51 | 1.74 | 758 | 25.85 | 73 | 2.49 | 2,050 | 69.92 |
| Tai'an Township (泰安鄉) | 79 | 1.82 | 1,318 | 30.38 | 112 | 2.58 | 2,829 | 65.21 |
2018 Miaoli County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Zhu Tai-ping (朱泰平) | Independent | 6,880 | 2.26% | |
| 2 | Hsu Ting-zhen (徐定禎) | Independent | 112,704 | 37.03% | |
| 3 | Huang Yu-yen (黃玉燕) | Independent | 9,030 | 2.97% | |
| 4 | Hsu Yao-chang (徐耀昌) | Kuomintang | 175,756 | 57.74% | |
| Total voters | Total voters | Total voters | 446,507 | 446,507 | 446,507 |
| Valid votes | Valid votes | Valid votes | 304,370 | 304,370 | 304,370 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 68.17% | 68.17% | 68.17% |

### Changhua County

Political context prior to the elections
Results of Past Changhua County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Juan Kang-meng | Kuomintang |
| 2001 | Wong Chin-chu | Democratic Progressive Party |
| 2005 | Cho Po-yuan | Kuomintang |
| 2009 | Cho Po-yuan | Kuomintang |
| 2014 | Wei Ming-ku | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 56% |
| Kuomintang | 2008 presidential election | 58% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 56.47% | 3 | 47.69% |
| Kuomintang | 28.80% | 1 | 44.96% |
| New Power Party | - | 0 | 0.49% |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 14.73% | 0 | 2.91% |
| Independent/Others | - | 0 | 3.95% |
Results of the primary
2018 Democratic Progressive Party Changhua County magistrate primary results :
| Candidates | Place | Result |
| Wei Ming-ku | Called In | Walkover |
2018 Kuomintang Changhua County magistrate primary results :
| Candidates | Place | TVBS | Apollo Survey & Research | UDN | Aggregated Result |
| Wang Huei-mei | Nominated | 56.66% | 59.78% | 55.59% | 57.34% |
| Wu Mingzhe | 2nd | 22.49% | 20.99% | 26.35% | 23.28% |
| Yang Fu-di | 3rd | 20.85% | 19.23% | 18.06% | 19.38% |
Opinion polls
| Poll organization | Dates conducted | Wei Ming-ku | Wang Huei-mei | Not sure | Lead |
| China Times | April 10, 2017 | 39.9% | 25.7% | 34.4% | 14.2% |
| Era Com Archived 2018-01-11 at the Wayback Machine | January 9, 2018 | 26.3% | 35.9% | 33.06% | 9.6% |
| China Times | February 13, 2018 | 33.6% | 28% | 38.4% | 5.6% |
| ETtoday | March 13, 2018 | 31.9% | 28.3% | 39.8% | 3.6% |
| GSSC | May 24, 2018 | 25.1% | 35.0% | 39.9% | 9.9% |
| ETtoday | September 2. 2018 | 29.6% | 29% | 26.3% | 0.6% |
| Chienkuo Technology$^1$ | September 15. 2018 | 13.2% | 19.9% | 33.6% | 6.7% |
| Liberty Times Net$^2$ | September 14, 2018 | 31.3% | 30.5% | 35.4% | 0.8% |
| UDN$^3$ | September 28, 2018 | 24% | 34% | 38% | 10% |
| Taiwan Next Gen Foundation$^4$ | October 3, 2018 | 32.3% | 31.7% | 30% | 0.4% |
| China Times$^5$ | October 14, 2018 | 28.8% | 37.7% | 26.4% | 8.9% |
| CM Media$^6$ | October 16, 2018 | 34.5% | 33.3% | 26.2% | 1.2% |
| Taiwan Competitiveness Forum$^7$ Archived 2018-10-29 at the Wayback Machine | October 25, 2018 | 23.9% | 33.4% | 35.5% | 9.5% |
| ETtoday$^8$ | October 28, 2018 | 23.2% | 38.1% | 27.7% | 14.9% |
| UDN$^9$ | November 6, 2018 | 24% | 41% | 31% | 17% |
| Cross Straits Research Foundation$^{10}$ | November 6, 2018 | 34.2% | 30.9% | 28.8% | 3.3% |
| Sanli$^{11}$ | November 6, 2018 | 35.4% | 33.4% | 25.3% | 2% |
| Note：* Opinion polls includes independent candidates. $^1$： Huang Wen-ling（4.7%）； Hung Min-xiong（3.2%） $^2$： Huang Wen-ling（2.29%）； Hung Min-xiong（0.3%）； Pai Ya-tsan（0.1%） $^3$： Huang Wen-ling（1%）； Hung Min-xiong（0.1%）； Pai Ya-tsan（0.1%） $^4$： Huang Wen-ling（6%） $^5$： Huang Wen-ling（5.8%） $^6$： Huang Wen-ling（4.8%）； Hung Min-xiong（0.4%）； Pai Ya-tsan（0.1%） $^7$： Huang Wen-ling（2.6%）； Hung Min-xiong（1%）； Pai Ya-tsan（0.6%） $^8$： Huang Wen-ling（4.5%） $^9$： Huang Wen-ling（4%）； Hung Min-xiong（0.3%）； Pai Ya-tsan（1%） $^{10}$： Huang Wen-ling（6.1%） $^{11}$： Huang Wen-ling; Others（0.1%） ||||||
Results
| District | Wei Ming-ku | Wang Huei-mei | Pai Ya-tsan | Huang Wen-ling | Hung Min-xiong |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Changhua City (彰化市) | 47,148 | 38.02 | 65,874 | 53.12 | 1,375 | 1.11 | 8,206 | 6.62 | 1,407 | 1.13 |
| Lugang Township (鹿港鎮) | 18,379 | 38.77 | 27,397 | 57.80 | 266 | 0.56 | 1,147 | 2.42 | 212 | 0.45 |
| Hemei Township (和美鎮) | 17,596 | 35.81 | 29,004 | 59.03 | 421 | 0.85 | 1,745 | 3.55 | 363 | 0.73 |
| Xianxi Township (線西鄉) | 2,818 | 28.46 | 6,615 | 66.82 | 90 | 0.91 | 314 | 3.17 | 63 | 0.64 |
| Shengang Township (伸港鄉) | 6,883 | 33.55 | 12,781 | 62.30 | 135 | 0.66 | 615 | 3.00 | 101 | 0.49 |
| Fuxing Township (福興鄉) | 9,992 | 38.08 | 15,125 | 57.65 | 220 | 0.84 | 752 | 2.87 | 148 | 0.56 |
| Xiushui Township (秀水鄉) | 7,953 | 35.67 | 13,132 | 58.90 | 173 | 0.78 | 836 | 3.75 | 203 | 0.91 |
| Huatan Township (花壇鄉) | 9,629 | 36.90 | 14,443 | 55.34 | 387 | 1.48 | 1,366 | 5.23 | 273 | 1.05 |
| Fenyuan Township (芬園鄉) | 6,415 | 46.08 | 6,594 | 47.37 | 119 | 0.85 | 669 | 4.81 | 124 | 0.89 |
| Yuanlin City (員林市) | 26,724 | 41.78 | 31,949 | 49.95 | 715 | 1.12 | 3,716 | 5.81 | 852 | 1.33 |
| Xihu Township (溪湖鎮) | 11,899 | 38.86 | 16,431 | 53.67 | 284 | 0.93 | 1,479 | 4.83 | 524 | 1.71 |
| Tianzhong Township (田中鎮) | 10,161 | 43.96 | 11,340 | 49.06 | 250 | 1.08 | 1,136 | 4.91 | 228 | 0.99 |
| Dacun Township (大村鄉) | 8,835 | 41.40 | 10,826 | 50.73 | 235 | 1.10 | 1,218 | 5.71 | 227 | 1.06 |
| Puyan Township (埔鹽鄉) | 6,620 | 32.43 | 12,415 | 60.82 | 200 | 0.98 | 943 | 4.62 | 236 | 1.16 |
| Puxin Township (埔心鄉) | 9,295 | 45.43 | 9,694 | 47.38 | 195 | 0.95 | 1,044 | 5.10 | 232 | 1.13 |
| Yongjing Township (永靖鄉) | 9,751 | 45.35 | 10,057 | 46.77 | 253 | 1.18 | 1,188 | 5.53 | 252 | 1.17 |
| Shetou Township (社頭鄉) | 10,864 | 44.60 | 11,703 | 48.04 | 502 | 2.06 | 1,094 | 4.49 | 196 | 0.80 |
| Ershui Township (二水鄉) | 4,775 | 49.11 | 4,452 | 45.79 | 78 | 0.80 | 357 | 3.67 | 61 | 0.63 |
| Beidou Township (北斗鎮) | 7,863 | 42.83 | 9,082 | 49.47 | 199 | 1.08 | 1,013 | 5.52 | 202 | 1.10 |
| Erlin Township (二林鎮) | 10,868 | 37.78 | 15,652 | 54.42 | 349 | 1.21 | 1,496 | 5.20 | 399 | 1.39 |
| Tianwei Township (田尾鄉) | 6,720 | 42.16 | 7,946 | 49.86 | 214 | 1.34 | 892 | 5.60 | 166 | 1.04 |
| Pitou Township (埤頭鄉) | 7,095 | 42.06 | 8,548 | 50.67 | 191 | 1.13 | 852 | 5.05 | 183 | 1.08 |
| Fangyuan Township (芳苑鄉) | 8,818 | 44.80 | 9,404 | 47.78 | 213 | 1.08 | 1,005 | 5.11 | 241 | 1.22 |
| Dacheng Township (大城鄉) | 4,013 | 43.29 | 4,708 | 50.78 | 92 | 0.99 | 347 | 3.74 | 111 | 1.20 |
| Zhutang Township (竹塘鄉) | 4,424 | 47.20 | 4,333 | 46.23 | 89 | 0.95 | 423 | 4.51 | 104 | 1.11 |
| Xizhou Township (溪州鄉) | 7,731 | 45.03 | 8,290 | 48.28 | 157 | 0.91 | 837 | 4.87 | 155 | 0.90 |
2018 Changhua County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Wei Ming-ku (魏明谷) | Democratic Progressive Party | 283,269 | 39.87% | |
| 2 | Wang Huei-mei (王惠美) | Kuomintang | 377,795 | 53.18% | |
| 3 | Pai Ya-tsan | Independent | 7,402 | 1.04% | |
| 4 | Huang Wen-ling (黃文玲) | Independent | 34,690 | 4.88% | |
| 5 | Hung Min-xiong (洪敏雄) | Independent | 7,263 | 1.02% | |
| Total voters | Total voters | Total voters | 1,031,222 | 1,031,222 | 1,031,222 |
| Valid votes | Valid votes | Valid votes | 710,419 | 710,419 | 710,419 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 68.89% | 68.89% | 68.89% |

### Nantou County

Political context prior to the elections
Results of Past Nantou County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Peng Pai-hsien | Independent |
| 2001 | Lin Tsung-nan | Democratic Progressive Party |
| 2005 | Lee Chao-ching | Kuomintang |
| 2009 | Lee Chao-ching | Kuomintang |
| 2014 | Lin Ming-chen | Kuomintang |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 52% |
| Kuomintang | 2008 legislative election | 62% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 52.23% | 0 | 44.24% |
| Kuomintang | 32.08% | 2 | 55.76% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 15.68% | 0 | - |
| Independent/Others | - | 0 | - |
Results of the primary
2018 Kuomintang Nantou County magistrate primary results :
| Candidates | Place | Result |
| Lin Ming-chen | Nominated | Walkover |
2018 Democratic Progressive Party Nantou County magistrate primary results :
| Candidates | Place | Result |
| Hung Kuo-haw | Called In | Walkover |
Opinion polls
| Poll organization | Dates conducted | Lin Ming-chen | Hung Kuo-haw | Not sure | Lead |
| ETtoday | March 13, 2018 | 59.4% | 11.7% | 28.9% | 47.7% |
| China Times | March 23, 2018 | 37.9% | 8.9% | 53.2% | 29% |
| China Times | October 29, 2018 | 48.4% | 13% | 37.6% | 35.4% |
Results
| District | Lin Ming-chen | Hung Kuo-haw |
| Votes | % | Votes | % |
| Nantou City (南投市) | 39,008 | 68.02 | 18,342 | 31.98 |
| Puli Township (埔里鎮) | 31,617 | 70.04 | 13,527 | 29.96 |
| Caotun Township (草屯鎮) | 29,774 | 53.79 | 25,582 | 46.21 |
| Zhushan Township (竹山鎮) | 21,162 | 68.00 | 9,960 | 32.00 |
| Jiji Township (集集鎮) | 4,774 | 68.63 | 2,182 | 31.37 |
| Mingjian Township (名間鄉) | 15,432 | 64.75 | 8,400 | 35.25 |
| Lugu Township (鹿谷鄉) | 8,156 | 72.48 | 3,096 | 27.52 |
| Zhongliao Township (中寮鄉) | 6,940 | 70.31 | 2,931 | 29.69 |
| Yuchi Township (魚池鄉) | 6,810 | 68.99 | 3,061 | 31.01 |
| Guoxing Township (魚池鄉) | 8,152 | 68.21 | 3,799 | 31.79 |
| Shuili Township (水里鄉) | 7,621 | 69.89 | 3,284 | 30.11 |
| Xinyi Township (信義鄉) | 7,902 | 80.96 | 1,858 | 19.04 |
| Ren'ai Township (仁愛鄉) | 8,037 | 84.82 | 1,438 | 15.18 |
2018 Nantou County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Lin Ming-chen (林明溱) | Kuomintang | 195,385 | 66.72% | |
| 2 | Hung Kuo-hao (洪國浩) | Democratic Progressive Party | 97,460 | 33.28% | |
| Total voters | Total voters | Total voters | 413,222 | 413,222 | 413,222 |
| Valid votes | Valid votes | Valid votes | 292,845 | 292,845 | 292,845 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 70.87% | 70.87% | 70.87% |

### Yunlin County

Political context prior to the elections
Results of Past Yunlin County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Chang Jung-wei | Independent -> Kuomintang |
| 2001 | Chang Jung-wei | Kuomintang |
| 2005 | Su Chih-fen | Democratic Progressive Party |
| 2009 | Su Chih-fen | Democratic Progressive Party |
| 2014 | Lee Chin-yung | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2009 local elections | 65% |
| Kuomintang | 2001 local elections | 62% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 63.41% | 2 | 61.27% |
| Kuomintang | 24.93% | 0 | 34.12% |
| New Power Party | - | 0 | 2.13% |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 11.66% | 0 | - |
| Independent/Others | - | 0 | 2.48% |
Results of the primary
2018 Democratic Progressive Party Yunlin County magistrate primary results :
| Candidates | Place | Result |
| Lee Chin-yung | Nominated | Walkover |
2018 Kuomintang Yunlin County magistrate primary results :
| Candidates | Place | Result |
| Chang Li-shan | Called In | Walkover |
Opinion polls
| Poll organization | Dates conducted | Lee Chin-yung | Chang Li-shan | Not sure | Lead |
| ETtoday | May 21, 2018 | 32.8% | 19.6% | 47.6% | 13.2% |
| Taiwan Competitiveness Forum$^1$ | October 17, 2018 | 32.6% | 25.3% | 35.8% | 7.3% |
| Taiwan Competitiveness Forum$^2$ | November 2, 2018 | 30.3% | 28% | 35.9% | 2.3% |
| Note：* Opinion polls includes independent candidates. $^1$： Lin Chia-yu（1.7%）； Wang Li-ping（0.9%） $^2$： Lin Chia-yu（1.4%）； Wang Li-ping（1.7%） ||||||
Results
| District | Lin Chia-yu | Lee Chin-yung | Wang Li-ping | Chang Li-shan |
| Votes | % | Votes | % | Votes | % | Votes | % |
| Douliu City (斗六市) | 1,055 | 1.81 | 22,922 | 39.39 | 2,161 | 3.71 | 32,050 | 55.08 |
| Dounan Township (斗南鎮) | 475 | 1.84 | 11,005 | 42.61 | 901 | 3.49 | 13,445 | 52.06 |
| Huwei Township (虎尾鎮) | 743 | 1.95 | 14,381 | 37.68 | 1,697 | 4.45 | 21,349 | 55.93 |
| Xiluo Township (西螺鎮) | 392 | 1.52 | 12,644 | 48.96 | 679 | 2.63 | 12,109 | 46.89 |
| Tuku Township (土庫鎮) | 275 | 1.58 | 6,368 | 36.69 | 578 | 3.33 | 10,136 | 58.40 |
| Beigang Township (北港鎮) | 334 | 1.44 | 10,941 | 47.13 | 514 | 2.21 | 11,426 | 49.22 |
| Gukeng Township (古坑鄉) | 283 | 1.52 | 7,693 | 41.45 | 496 | 2.67 | 10,087 | 54.35 |
| Dapi Township (大埤鄉) | 190 | 1.62 | 4,860 | 41.37 | 359 | 3.06 | 6,339 | 53.96 |
| Cihtong Township (莿桐鎮) | 323 | 1.84 | 8,445 | 48.24 | 521 | 2.98 | 8,218 | 46.94 |
| Linnei Township (林內鄉) | 125 | 1.19 | 4,928 | 46.72 | 260 | 2.47 | 5,234 | 49.63 |
| Erlun Township (二崙鄉) | 240 | 1.52 | 7,708 | 48.78 | 392 | 2.48 | 7,461 | 47.22 |
| Lunbei Township (崙背鄉) | 209 | 1.44 | 5,987 | 41.25 | 357 | 2.46 | 7,961 | 54.85 |
| Mailiao Township (麥寮鄉) | 340 | 1.49 | 6,429 | 28.12 | 542 | 2.37 | 15,550 | 68.02 |
| Dongshi Township (東勢鄉) | 117 | 1.18 | 3,902 | 39.49 | 174 | 1.76 | 5,687 | 57.56 |
| Baozhong Township (褒忠鄉) | 100 | 1.15 | 3,638 | 41.81 | 217 | 2.49 | 4,746 | 54.55 |
| Taixi Township (臺西鄉) | 175 | 1.26 | 4,600 | 33.11 | 283 | 2.04 | 8,833 | 63.59 |
| Yuanchang Township (元長鄉) | 267 | 1.75 | 6,483 | 42.41 | 418 | 2.73 | 8,118 | 53.11 |
| Sihu Township (四湖鄉) | 118 | 0.95 | 5,728 | 46.04 | 212 | 1.70 | 6,384 | 51.31 |
| Kouhu Township (口湖鄉) | 195 | 1.20 | 7,059 | 43.50 | 236 | 1.45 | 8,739 | 53.85 |
| Shuilin Township (水林鄉) | 207 | 1.38 | 7,604 | 50.78 | 264 | 1.76 | 6,898 | 46.07 |
2018 Yunlin County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Lin Chia-yu (林佳瑜) | Independent | 6,163 | 1.57% | |
| 2 | Lee Chin-yung (李進勇) | Democratic Progressive Party | 163,325 | 41.72% | |
| 3 | Wang Li-ping (王麗萍) | Independent | 11,261 | 2.88% | |
| 4 | Chang Li-shan (張麗善) | Kuomintang | 210,770 | 53.82% | |
| Total voters | Total voters | Total voters | 565,078 | 565,078 | 565,078 |
| Valid votes | Valid votes | Valid votes | 391,519 | 391,519 | 391,519 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 69.29% | 69.29% | 69.29% |

### Chiayi County

Political context prior to the elections
Results of Past Chiayi County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Lee Ya-jing | Kuomintang |
| 2001 | Chen Ming-wen | Democratic Progressive Party |
| 2005 | Chen Ming-wen | Democratic Progressive Party |
| 2009 | Helen Chang | Democratic Progressive Party |
| 2014 | Helen Chang | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 65% |
| Kuomintang | 2008 legislative election | 50% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 65.37% | 2 | 59.05% |
| Kuomintang | 23.38% | 0 | 38.68% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 11.25% | 0 | - |
| Independent/Others | - | 0 | 2.27% |
Results of the primary
2018 Democratic Progressive Party Chiayi County magistrate primary results :
| Candidates | Place | Focus Survey Research | Shih Shin | Real Survey | Aggregated Result |
| Weng Chang-liang | Nominated | 43.08% | 42.88% | 45.34% | 43.77% |
| Chang Ming-ta | 2nd | 35.57% | 36.73% | 33.79% | 35.36% |
| None of the candidates | | 21.35% | 20.39% | 20.87% | 20.87% |
2018 Kuomintang Chiayi County magistrate primary results :
| Candidates | Place | Result |
| Wu Yu-jen | Called In | Walkover |
Opinion polls
| Poll organization | Date of completion | Weng Chang-liang | Wu Yu-jen | Not sure | Lead |
| ETtoday | June 4, 2018 | 34.3% | 15.3% | 50.4% | 19% |
| ETtoday | September 24, 2018 | 29.3% | 22.8% | 32.4% | 6.5% |
| Note：* Opinion polls includes independent candidates. $^1$： Wu Fang-ming（5%）; Lin Kuo-lung（2.6%） ||||||
Results
| District | Weng Chang-liang | Wu Fang-ming | Lin Kuo-lung | Wu Yu-jen |
| Votes | % | Votes | % | Votes | % | Votes | % |
| Taibao City (太保市) | 10,506 | 51.80 | 3,395 | 16.73 | 288 | 1.42 | 6,092 | 30.03 |
| Puzi City (朴子市) | 11,907 | 53.76 | 3,655 | 16.50 | 405 | 1.82 | 6,178 | 27.89 |
| Budai Township (布袋鎮) | 8,244 | 54.46 | 1,569 | 10.36 | 269 | 1.77 | 5,053 | 33.38 |
| Dalin Township (大林鎮) | 7,976 | 45.34 | 3,945 | 22.42 | 242 | 1.37 | 5,426 | 30.84 |
| Minxiong Township (民雄鄉) | 17,016 | 44.72 | 8,246 | 21.67 | 645 | 1.69 | 12,139 | 31.90 |
| Xikou Township (溪口鄉) | 4,932 | 54.42 | 1,820 | 20.08 | 211 | 2.32 | 2,099 | 23.16 |
| Xingang Township (新港鄉) | 10,986 | 58.72 | 3,095 | 16.54 | 329 | 1.75 | 4,298 | 22.97 |
| Lioujiao Township (六腳鄉) | 7,675 | 60.65 | 1,740 | 13.75 | 250 | 1.97 | 2,989 | 23.62 |
| Dongshi Township (東石鄉) | 7,275 | 54.97 | 2,532 | 19.13 | 234 | 1.76 | 3,193 | 24.12 |
| Yizhu Township (義竹鄉) | 8,500 | 70.92 | 938 | 7.82 | 132 | 1.10 | 2,414 | 20.14 |
| Lucao Township (鹿草鄉) | 5,411 | 60.44 | 844 | 9.42 | 152 | 1.69 | 2,545 | 28.42 |
| Shuishang Township (水上鄉) | 13,968 | 50.44 | 3,529 | 12.74 | 458 | 1.65 | 9,734 | 35.15 |
| Zhongpu Township (中埔鄉) | 11,500 | 48.73 | 4,038 | 17.11 | 308 | 1.30 | 7,751 | 32.84 |
| Zhuqi Township (竹崎鄉) | 8,791 | 42.07 | 5,467 | 26.16 | 334 | 1.59 | 6,300 | 30.15 |
| Meishan Township (梅山鄉) | 5,175 | 43.22 | 3,197 | 26.70 | 164 | 1.36 | 3,437 | 28.70 |
| Fanlu Township (番路鄉) | 2,253 | 32.65 | 2,036 | 29.51 | 100 | 1.44 | 2,510 | 36.38 |
| Dapu Township (大埔鄉) | 1,724 | 56.06 | 397 | 12.91 | 35 | 1.13 | 919 | 29.88 |
| Alishan Township (阿里山鄉) | 1,449 | 44.83 | 577 | 17.85 | 40 | 1.23 | 1,166 | 36.07 |
2018 Chiayi County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Weng Chang-liang (翁章梁) | Democratic Progressive Party | 145,288 | 50.95% | |
| 2 | Wu Fang-ming (吳芳銘) | Independent | 51,020 | 17.89% | |
| 3 | Lin Kuo-lung (林國龍) | Independent | 4,596 | 1.61% | |
| 4 | Wu Yu-jen (吳育仁) | Kuomintang | 84,243 | 29.54% | |
| Total voters | Total voters | Total voters | 428,649 | 428,649 | 428,649 |
| Valid votes | Valid votes | Valid votes | 285,147 | 285,147 | 285,147 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 66.52% | 66.52% | 66.52% |

### Chiayi City

Political context prior to the elections
Results of Past Chiayi City Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Chang Po-ya | Independent |
| 2001 | Chen Li-chen | Independent |
| 2005 | Huang Min-hui | Kuomintang |
| 2009 | Huang Min-hui | Kuomintang |
| 2014 | Twu Shiing-jer | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 60% |
| Kuomintang | 2005 local election | 55% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 59.86% | 1 | 53.95% |
| Kuomintang | 27.95% | 0 | 35.66% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 12.19% | 0 | - |
| Independent/Others | - | 0 | 10.39% |
Results of the primary
2018 Democratic Progressive Party Chiayi City mayoral primary results :
| Candidates | Place | Result |
| Twu Shiing-jer | Nominated | Walkover |
2018 Kuomintang Chiayi City mayoral primary results :
| Candidates | Place | Results |
| Huang Min-hui | Nominated | Results not released |
| Jack Lee | 2nd | Results not released |
Opinion polls
| Poll organization | Dates conducted | Twu Shiing-jer | Huang Min-hui | Hsiao Shu-li | Not sure | Lead |
| Yam News | September 27, 2017 | 50.91% | 49.09% | - | 0% | 1.82% |
| Era Com Archived 2018-02-25 at the Wayback Machine | January 15, 2018 | 22.08% | 53.23% | - | 24.69% | 31.15% |
| GSSC | April 27, 2018 | 21.9% | 34.4% | 15.1% | 28.6% | 12.5% |
| ETtoday | June 4, 2018 | 18.2% | 31.2% | 18.0% | 32.6% | 13% |
| CM Media | September 5, 2018 | 39.5% | 24.8% | 18.9% | 17% | 15.3% |
| ETtoday$^1$ | September 16, 2018 | 26.0% | 35.4% | 10.7% | 18.6% | 9.4% |
| Liberty News Net$^2$ | September 29, 2018 | 30.14% | 24.56% | 17.91% | 27.1% | 5.58% |
| UDN$^3$ | October 2, 2018 | 25% | 28% | 17% | 29% | 3% |
| TVBS$^4$ | October 15, 2018 | 29% | 35% | 15% | 20% | 6% |
| Taiwan Competitiveness Forum$^5$ | October 25, 2018 | 25.6% | 28% | 15.3% | 26.0% | 2.4% |
| Taiwan Competitiveness Forum$^6$ | November 4, 2018 | 26.5% | 28.8% | 13.2% | 25.9% | 2.3% |
| UDN$^7$ | November 7, 2018 | 28% | 31% | 15% | 24% | 3% |
| Note：* Opinion polls includes independent candidates. $^1$： Huang Hung Chen Taiwan Ah Chen World Great Person Rich President（3.0%） $^2$： Huang Hung Chen Taiwan Ah Chen World Great Person Rich President（0.29%） $^3$： Huang Hung Chen Taiwan Ah Chen World Great Person Rich President（1%） $^4$： Huang Hung Chen Taiwan Ah Chen World Great Person Rich President（1%） $^5$： Huang Hung Chen Taiwan Ah Chen World Great Person Rich President（1.4%） $^6$： Huang Hung Chen Taiwan Ah Chen World Great Person Rich President（1.6%） $^7$： Huang Hung Chen Taiwan Ah Chen World Great Person Rich President（2%） |||||||
Predictions
| Poll organization | Date of completion | Turnout | Twu Shiing-jer | Huang Min-hui | Hsiao Shu-li | Huang Hung Chen Taiwan Ah Chen World Great Person Rich President |
| TVBS | October 15, 2018 | 70% | 41% | 40% | 15% | 1% |
Results
| District | Hsiao Shui-li | Huang Min-hui | Huang Hung Chen Taiwan Ah Chen World Great Person Rich President | Twu Shiing-jer |
| Votes | % | Votes | % | Votes | % | Votes | % |
| East District (東區) | 10,703 | 16.95 | 27,558 | 43.64 | 806 | 1.28 | 24,081 | 38.13 |
| West District (西區) | 14,869 | 0.40 | 31,000 | 39.21 | 1,016 | 1.29 | 32,175 | 40.70 |
2018 Chiayi City mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Hsiao Shui-li (蕭淑麗) | Independent | 25,572 | 17.98% | |
| 2 | Huang Min-hui (黃敏惠) | Kuomintang | 58,558 | 41.18% | |
| 3 | Huang Hung Chen Taiwan Ah Chen World Great Person Rich President (黃宏成台灣阿成 世界偉人財神總統) | Independent | 1,822 | 1.28% | |
| 4 | Twu Shiing-jer (涂醒哲) | Democratic Progressive Party | 56,256 | 39.56% | |
| Total voters | Total voters | Total voters | 212,843 | 212,843 | 212,843 |
| Valid votes | Valid votes | Valid votes | 142,208 | 142,208 | 142,208 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 66.81% | 66.81% | 66.81% |

### Pingtung County

Political context prior to the elections
Results of Past Pingtung County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Su Jia-chyuan | Democratic Progressive Party |
| 2001 | Su Jia-chyuan | Democratic Progressive Party |
| 2005 | Tsao Chi-hung | Democratic Progressive Party |
| 2009 | Tsao Chi-hung | Democratic Progressive Party |
| 2014 | Pan Men-an | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 63% |
| Kuomintang | 2008 presidential election | 49% |
2016 election results :
| Party | Presidential % | Legislative seats | Legislative % |
| Democratic Progressive Party | 63.49% | 3 | 58.94% |
| Kuomintang | 26.99% | 0 | 30.89% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 9.52% | 0 | - |
| Independent/Others | - | 0 | 10.17% |
Results of the primary
2018 Democratic Progressive Party Pingtung County magistrate primary results :
| Candidates | Place | Result |
| Pan Men-an | Nominated | Walkover |
2018 Kuomintang Pingtung County magistrate primary results :
| Candidates | Place | Result |
| Su Ching-chuan | Called In | Walkover |
Opinion polls
| Poll organization | Date of completion | Pan Men-an | Su Ching-chuan | Not sure | Lead |
| ETtoday | June 19, 2018 | 37.9% | 20.9% | 29.9% | 17% |
| ETtoday$^1$ | September 30, 2017 | 36.4% | 24.8% | 22.5% | 11.6% |
| TISR$^2$ Archived 2018-10-25 at the Wayback Machine | October 22, 2018 | 43.4% | 17.1% | 33.1% | 26.3% |
| TISR$^2$ Archived 2018-11-12 at the Wayback Machine | November 10, 2018 | 41.6% | 19.3% | 33.4% | 22.3% |
| Note：* Opinion polls includes independent candidates. $^1$： Lee Jung-jen（4.5%） $^2$： Lee Jung-jen（1.5%） $^3$： Lee Jung-jen（0.7%） ||||||
Results
| District | Lee Jung-jen | Su Ching-chuan | Pan Men-an |
| Votes | % | Votes | % | Votes | % |
| Pingtung City (屏東市) | 2,182 | 2.14 | 46,320 | 45.47 | 53,370 | 52.39 |
| Chaozhou Township (潮州鎮) | 623 | 2.16 | 12,571 | 43.62 | 15,628 | 54.22 |
| Donggang Township (東港鎮) | 575 | 2.38 | 11,387 | 47.04 | 12,243 | 50.58 |
| Hengchun Township (恆春鎮) | 232 | 1.40 | 6,729 | 40.55 | 9,632 | 58.05 |
| Wandan Township (萬丹鄉) | 825 | 2.84 | 11,272 | 38.87 | 16,905 | 58.29 |
| Changzhi Township (長治鄉) | 381 | 2.20 | 6,939 | 40.05 | 10,006 | 57.75 |
| Linluo Township (麟洛鄉) | 160 | 2.25 | 2,526 | 35.45 | 4,440 | 62.31 |
| Jiuru Township (九如鄉) | 294 | 2.22 | 3,977 | 30.03 | 8,972 | 67.75 |
| Ligang Township (里港鄉) | 393 | 2.54 | 5,371 | 34.75 | 9,692 | 62.71 |
| Yanpu Township (鹽埔鄉) | 387 | 2.43 | 6,561 | 41.20 | 8,977 | 56.37 |
| Gaoshu Township (高樹鄉) | 347 | 2.22 | 5,402 | 34.53 | 9,897 | 63.26 |
| Wanluan Township (萬巒鄉) | 198 | 1.61 | 3,866 | 31.41 | 8,245 | 66.98 |
| Neipu Township (內埔鄉) | 539 | 1.86 | 10,697 | 36.84 | 17,799 | 61.30 |
| Zhutian Township (竹田鄉) | 216 | 1.94 | 4,040 | 36.23 | 6,894 | 61.83 |
| Xinpi Township (新埤鄉) | 100 | 1.55 | 2,663 | 41.34 | 3,678 | 57.10 |
| Fangliao Township (枋寮鄉) | 308 | 2.03 | 7,635 | 50.44 | 7,194 | 47.53 |
| Xinyuan Township (新園鄉) | 523 | 2.52 | 8,167 | 39.28 | 12,100 | 58.20 |
| Kanding Township (崁頂鄉) | 155 | 1.87 | 3,219 | 38.80 | 4,923 | 59.33 |
| Linbian Township (林邊鄉) | 193 | 1.71 | 4,376 | 38.84 | 6,699 | 59.45 |
| Nanzhou Township (南州鄉) | 159 | 2.25 | 3,024 | 42.84 | 3,876 | 54.91 |
| Jiadong Township (佳冬鄉) | 165 | 1.39 | 4,432 | 37.29 | 7,288 | 61.32 |
| Liqiu Township (琉球鄉) | 116 | 1.69 | 4,763 | 69.26 | 1,998 | 29.05 |
| Checheng Township (車城鄉) | 74 | 1.40 | 1,786 | 33.67 | 3,444 | 64.93 |
| Manzhou Township (滿州鄉) | 89 | 1.68 | 1,994 | 37.68 | 3,209 | 60.64 |
| Fangshan Township (枋山鄉) | 72 | 1.85 | 1,385 | 35.63 | 2,430 | 62.52 |
| Sandimen Township (三地門鄉) | 85 | 1.65 | 2,895 | 56.14 | 2,177 | 42.21 |
| Wutai Township (霧臺鄉) | 46 | 1.85 | 1,129 | 45.34 | 1,315 | 52.81 |
| Majia Township (瑪家鄉) | 65 | 1.42 | 2,350 | 51.40 | 2,157 | 47.18 |
| Taiwu Township (泰武鄉) | 42 | 1.17 | 1,668 | 46.62 | 1,868 | 52.21 |
| Laiyi Township (來義鄉) | 64 | 1.35 | 2,673 | 56.24 | 2,016 | 42.42 |
| Chunri Township (春日鄉) | 71 | 2.35 | 1,737 | 57.38 | 1,219 | 40.27 |
| Shizi Township (獅子鄉) | 72 | 2.10 | 2,192 | 64.02 | 1,160 | 33.88 |
| Mudan Township (牡丹鄉) | 68 | 2.13 | 1,772 | 55.41 | 1,358 | 42.46 |
2018 Pingtung County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Lee Jung-jen (李鎔任) | Independent | 9,819 | 2.09% | |
| 2 | Su Ching-chuan (蘇清泉) | Kuomintang | 197,518 | 42.01% | |
| 3 | Pan Men-an (潘孟安) | Democratic Progressive Party | 262,809 | 55.90% | |
| Total voters | Total voters | Total voters | 689,393 | 689,393 | 689,393 |
| Valid votes | Valid votes | Valid votes | 470,146 | 470,146 | 470,146 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 68.20% | 68.20% | 68.20% |

### Hualien County

Political context prior to the elections
Results of Past Hualien County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Chang Fu-hsin | Kuomintang |
| 2001 | Chang Fu-hsin | Kuomintang |
| 2005 | Hsieh Shen-shan | Kuomintang |
| 2009 | Fu Kun-chi | Independent |
| 2014 | Fu Kun-chi | Independent |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 legislative election | 53% |
| Kuomintang | 2008 presidential election | 77% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 36.94% | 1 | 53.77% |
| Kuomintang | 47.72% | 0 | 43.58% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 15.34% | 0 | - |
| Independent/Others | - | 0 | 2.65% |
Results of the primary
2018 Kuomintang Hualien County magistrate primary results :
| Candidates | Place | Result |
| Hsu Chen-wei | Called In | Walkover |
2018 Democratic Progressive Party Hualien County magistrate primary results :
| Candidates | Place | Result |
| Liu Siao-Mei | Called In | Walkover |
Opinion polls
| Poll organization | Dates conducted | Hsu Chen-wei | Liu Siao-Mei | Not sure | Lead |
| China Times | March 25, 2018 | 40.1% | 17.0% | 42.9% | 23.1% |
| ETtoday | June 13, 2018 | 44.4% | 19.0% | 36.6% | 25.4% |
Results
| District | Hsu Chen-wei | Liu Siao-Mei | Huang Shih-peng |
| Votes | % | Votes | % | Votes | % |
| Hualien City (花蓮市) | 32,399 | 65.99 | 15,065 | 30.68 | 1,635 | 3.33 |
| Fenglin Township (鳳林鎮) | 4,991 | 76.26 | 1,418 | 21.67 | 136 | 2.08 |
| Yuli Township (玉里鎮) | 9,193 | 76.13 | 2,646 | 21.91 | 237 | 1.96 |
| Xincheng Township (新城鄉) | 7,551 | 71.41 | 2,716 | 25.69 | 307 | 2.90 |
| Ji'an Township (吉安鄉) | 28,510 | 68.51 | 11,845 | 28.46 | 1,260 | 3.03 |
| Shoufeng Township (壽豐鄉) | 7,438 | 71.53 | 2,732 | 26.27 | 229 | 2.20 |
| Guangfu Township (光復鄉) | 5,830 | 77.36 | 1,553 | 20.61 | 153 | 2.03 |
| Fengbin Township (豐濱鄉) | 2,471 | 77.70 | 629 | 19.78 | 80 | 2.52 |
| Ruisui Township (瑞穗鄉) | 5,010 | 75.78 | 1,487 | 22.49 | 114 | 1.72 |
| Fuli Township (富里鄉) | 4,628 | 77.81 | 1,229 | 20.66 | 91 | 1.53 |
| Xiulin Township (秀林鄉) | 7,074 | 80.55 | 1,629 | 18.55 | 79 | 0.90 |
| Wanrong Township (萬榮鄉) | 3,205 | 83.70 | 567 | 14.81 | 57 | 1.49 |
| Zuoxi Township (卓溪鄉) | 2,997 | 88.10 | 363 | 10.67 | 42 | 1.23 |
2018 Hualien County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Hsu Chen-wei (徐榛蔚) | Kuomintang | 121,297 | 71.52% | |
| 2 | Liu Siao-Mei (劉曉玫) | Democratic Progressive Party | 43,879 | 25.87% | |
| 3 | Huang Shih-peng (黃師鵬) | Independent | 4,420 | 2.61% | |
| Total voters | Total voters | Total voters | 268,817 | 268,817 | 268,817 |
| Valid votes | Valid votes | Valid votes | 169,596 | 169,596 | 169,596 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 63.09% | 63.09% | 63.09% |

### Taitung County

Political context prior to the elections
Results of Past Taitung County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Chen Jen-nian | Kuomintang |
| 2001 | Hsu Ching-yuan | People First Party |
| 2005 | Wu Chun-li | Independent |
| 2006 | Kuang Li-chen | Kuomintang |
| 2009 | Justin Huang | Kuomintang |
| 2014 | Justin Huang | Kuomintang |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 legislative election | 64% |
| Kuomintang | 2008 presidential election | 73% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 38.41% | 1 | 64.18% |
| Kuomintang | 44.62% | 0 | 35.82% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 16.96% | 0 | - |
| Independent/Others | - | 0 | - |
Results of the primary
2018 Democratic Progressive Party Taitung County magistrate primary results :
| Candidates | Place | Result |
| Liu Chao-hao | Called In | Walkover |
2018 Kuomintang Taitung County magistrate primary results :
| Candidates | Place | Results |
| Rao Ching-ling | Nominated | Results not released |
| Liao Kuo-tung | 2nd | Results not released |
Opinion polls
| Poll organization | Dates conducted | Rao Ching-ling | Liu Chao-hao | Not sure | Lead |
| ETtoday | June 22, 2018 | 34.1% | 27.8% | 38.1% | 6.3% |
| China Times | October 2, 2018 | 38.6% | 30.3% | 27.8% | 8.3% |
| TVBS$^2$ | October 10, 2018 | 40% | 31% | 24% | 9% |
| ETtoday$^3$ | October 21, 2018 | 36.7% | 25.9% | 23.1% | 9% |
| Note：* Opinion polls includes independent candidates. $^1$： Kuang Li-zhen（3.3%）; Peng Chuan-kuo（1.0%）; Huang Yu-pin（0.0%） $^2$： Kuang Li-zhen（5%）; Peng Chuan-kuo（0.2%）; Huang Yu-pin（1.0%） $^3$： Kuang Li-zhen（4.6%）; Peng Chuan-kuo（4%）; Huang Yu-pin（1.3%） ||||||
Results
| District | Kuang Li-zhen | Liu Chao-hao | Huang Yu-pin | Peng Chuan-kuo | Rao Ching-ling |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Taitung City (臺東市) | 994 | 1.78 | 22,681 | 40.72 | 282 | 0.51 | 525 | 0.94 | 31,213 | 65.99 |
| Chenggong Township (成功鎮) | 251 | 3.41 | 2,536 | 34.41 | 43 | 0.58 | 59 | 0.80 | 4,481 | 60.80 |
| Guanshan Township (關山鎮) | 120 | 2.37 | 1,779 | 35.12 | 28 | 0.55 | 44 | 0.87 | 3,094 | 61.09 |
| Binan Township (卑南鄉) | 227 | 2.36 | 3,583 | 37.28 | 37 | 0.39 | 64 | 0.67 | 5,699 | 59.30 |
| Luye Township (鹿野鄉) | 134 | 2.93 | 1,992 | 43.50 | 33 | 0.72 | 35 | 0.76 | 2,385 | 52.09 |
| Chishang Township (池上鄉) | 103 | 2.32 | 1,704 | 38.40 | 23 | 0.52 | 19 | 0.43 | 2,588 | 58.33 |
| Donghe Township (東河鄉) | 160 | 3.40 | 1,687 | 35.83 | 31 | 0.66 | 48 | 1.02 | 2,782 | 59.09 |
| Changbin Township (長濱鄉) | 186 | 4.79 | 1,293 | 33.32 | 25 | 0.64 | 29 | 0.75 | 2,347 | 60.49 |
| Taimali Township (太麻里鄉) | 164 | 2.46 | 2,184 | 32.75 | 33 | 0.49 | 37 | 0.55 | 4,251 | 63.74 |
| Dawu Township (大武鄉) | 126 | 3.47 | 1,172 | 32.27 | 23 | 0.63 | 29 | 0.80 | 2,282 | 62.83 |
| Ludao Township (綠島鄉) | 48 | 2.06 | 719 | 30.81 | 5 | 0.21 | 26 | 1.11 | 1,536 | 65.81 |
| Haiduan Township (海端鄉) | 68 | 3.06 | 467 | 21.04 | 9 | 0.41 | 15 | 0.68 | 1,661 | 74.82 |
| Yanping Township (延平鄉) | 104 | 4.58 | 460 | 20.25 | 20 | 0.88 | 11 | 0.48 | 1,677 | 73.81 |
| Jinfeng Township (金峰鄉) | 60 | 2.45 | 606 | 24.75 | 6 | 0.25 | 6 | 0.25 | 1,770 | 72.30 |
| Daren Township (達仁鄉) | 97 | 3.93 | 641 | 25.95 | 16 | 0.65 | 9 | 0.36 | 1,707 | 69.11 |
| Lanyu Township (蘭嶼鄉) | 207 | 9.72 | 607 | 35.70 | 26 | 1.22 | 32 | 1.50 | 1,104 | 51.86 |
2018 Taitung County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Kuang Li-zhen (鄺麗貞) | Independent | 3,049 | 2.55% | |
| 2 | Liu Chao-hao (劉櫂豪) | Democratic Progressive Party | 44,264 | 37.04% | |
| 3 | Huang Yu-pin (黃裕斌) | Independent | 640 | 0.54% | |
| 4 | Peng Chuan-kuo (彭權國) | Independent | 988 | 0.83% | |
| 5 | Rao Ching-ling (饒慶鈴) | Kuomintang | 70,577 | 59.05% | |
| Total voters | Total voters | Total voters | 179,706 | 179,706 | 179,706 |
| Valid votes | Valid votes | Valid votes | 119,518 | 119,518 | 119,518 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 66.51% | 66.51% | 66.51% |

### Penghu County

Political context prior to the elections
Results of Past Penghu County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Lai Feng-wei | Kuomintang |
| 2001 | Lai Feng-wei | Kuomintang |
| 2005 | Lai Feng-wei | Kuomintang |
| 2009 | Wang Chien-fa | Kuomintang |
| 2014 | Chen Kuang-fu | Democratic Progressive Party |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | Taiwan local election, 1993 | 58% |
| Kuomintang | 2008 presidential election | 58% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 50.81% | 1 | 55.40% |
| Kuomintang | 29.48% | 0 | 39.99% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 19.71% | 0 | - |
| Independent/Others | - | 0 | 4.61% |
Result of the primary
2018 Democratic Progressive Party Penghu County magistrate primary results :
| Candidates | Place | Result |
| Chen Kuang-fu | Nominated | Walkover |
2018 Kuomintang Penghu County magistrate primary results :
| Candidates | Place | Results |
| Lai Feng Wei | Called In | Called in after negotiation |
Opinion polls
| Poll organization | Date of completion | Chen Kuang-fu | Lai Feng-wei | Not sure | Lead |
| Era Com | January 19, 2018 | 26.41% | 39.39% | 34.2% | 12.98% |
| ETtoday$^1$ | July 8, 2018 | 20.1% | 29.1% | 32.1% | 9% |
| Shih Shin University$^2$ | October 17, 2018 | 14.9% | 23.3% | 45% | 8.4% |
| Note:* Opinion polls includes independent candidates. $^1$： Cheng Ching-fa(4.8%); Wu Cheng-lung(3.1%) $^2$： Cheng Ching-fa(5.6%); Wu Cheng-lung(2.3%); Chen Ta-sung(5.0%); On Lee-la (0.8%); Lu Hwa-yuann(0.0%) ||||||
Results
| District | On Lee-la | Cheng Ching-fa | Chen Ta-sung | Wu Cheng-lung | Lai Feng-wei | Chen Kuang-fu | Lu Hwa-yuann |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Magong City (馬公市) | 664 | 2.13 | 2,536 | 8.15 | 4,215 | 13.54 | 1,606 | 5.16 | 12,806 | 41.14 | 9,043 | 29.05 | 257 | 0.83 |
| Huxi Township (湖西鄉) | 93 | 1.19 | 797 | 10.17 | 563 | 7.18 | 733 | 9.35 | 2,452 | 31.28 | 3,084 | 39.34 | 117 | 1.49 |
| Baisha Township (白沙鄉) | 95 | 1.86 | 322 | 6.29 | 475 | 9.28 | 306 | 5.98 | 1,951 | 38.13 | 1,931 | 37.74 | 37 | 0.72 |
| Xiyu Township (西嶼鄉) | 434 | 10.73 | 218 | 5.39 | 305 | 7.54 | 209 | 5.17 | 1,558 | 38.54 | 1,294 | 32.01 | 25 | 0.62 |
| Wangan Township (望安鄉) | 70 | 2.40 | 392 | 13.44 | 195 | 6.69 | 88 | 3.02 | 841 | 28.84 | 1,310 | 44.92 | 20 | 0.69 |
| Cimei Township (七美鄉) | 23 | 1.23 | 65 | 3.47 | 69 | 3.68 | 57 | 3.04 | 962 | 51.36 | 685 | 36.57 | 12 | 0.64 |
2018 Penghu County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | On Lee-la (翁珍聖) | Independent | 1,379 | 2.61% | |
| 2 | Cheng Ching-fa (鄭清發) | Independent | 4,330 | 8.18% | |
| 3 | Chen Ta-sung (陳大松) | Independent | 5,822 | 11.00% | |
| 4 | Wu Cheng-lung (吳政隆) | Independent | 2,999 | 5.67% | |
| 5 | Lai Feng-wei (賴峰偉) | Kuomintang | 20,570 | 38.87% | |
| 6 | Chen Kuang-fu (陳光復) | Democratic Progressive Party | 17,347 | 32.78% | |
| 7 | Lu Hwa-yuann (呂華苑) | Independent | 468 | 0.88% | |
| Total voters | Total voters | Total voters | 86,603 | 86,603 | 86,603 |
| Valid votes | Valid votes | Valid votes | 52,915 | 52,915 | 52,915 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 61.10% | 61.10% | 61.10% |

## Fujian Province
### Kinmen County

Political context prior to the elections
Results of Past Kinmen County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Chen Shui-zai | Kuomintang |
| 2001 | Lee Chu-feng | New Party |
| 2005 | Lee Chu-feng | New Party |
| 2009 | Li Wo-shi | Kuomintang |
| 2014 | Chen Fu-hai | Independent |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 legislative election | 23% |
| Kuomintang | 2008 presidential election | 95% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 18.00% | 0 | 23.07% |
| Kuomintang | 66.10% | 1 | 45.08% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 15.90% | 0 | - |
| Independent/Others | - | 0 | 31.85% |
Results of the primary
2018 Kuomintang Kinmen County magistrate primary results :
| Candidates | Place | Result |
| Yang Cheng-wu | Called In | Walkover |
Opinion polls
| Poll organization | Date of completion | Yang Cheng-wu | Chen Fu-hai | Not sure | Lead |
| Polls | July 17, 2018 | 32.7% | 30.6% | 36.7% | 2.1% |
| ETtoday | July 23, 2018 | 28% | 23% | 40.4% | 5% |
Results
| District | Yang Cheng-wu | Kinmen Gaoliang Party Hung Chih-heng | UNESCO budget e-league Wang Cheng-hua | Chen Fu-hai | Hsieh Yi-zhen | Hong Ho-cheng |
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % |
| Jincheng Township (金城鎮) | 8,137 | 54.28 | 299 | 1.99 | 257 | 0.80 | 5,916 | 39.47 | 412 | 2.75 | 106 | 0.71 |
| Jinsha Township (金沙鎮) | 2,974 | 38.56 | 87 | 1.13 | 50 | 0.65 | 4,412 | 57.20 | 151 | 1.96 | 39 | 0.51 |
| Jinhu Township (金湖鎮) | 4,204 | 39.07 | 115 | 1.07 | 75 | 0.70 | 5,855 | 54.42 | 457 | 4.25 | 53 | 0.49 |
| Jinning Township (金寧鄉) | 5,989 | 54.92 | 206 | 1.89 | 140 | 1.28 | 4,204 | 38.55 | 275 | 2.52 | 90 | 0.83 |
| Lieyu Township (烈嶼鄉) | 2,154 | 46.28 | 124 | 2.66 | 18 | 0.39 | 2,186 | 46.97 | 94 | 2.02 | 78 | 1.68 |
| Wuqiu Township (烏坵鄉) | 62 | 29.67 | 1 | 0.48 | | | 146 | 69.86 | | | | |
2018 Kinmen County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Yang Cheng-wu (楊鎮浯) | Kuomintang | 23,520 | 47.48% | |
| 2 | Hung Chih-heng (洪志恒) | Kinmen Gaoliang Party | 832 | 1.69% | |
| 3 | Wang Cheng-hua (汪承樺) | UNESCO budget e-league | 403 | 0.82% | |
| 4 | Chen Fu-hai (陳福海) | Independent | 22,719 | 46.15% | |
| 5 | Hsieh Yi-zhen (謝宜璋) | Independent | 1,389 | 2.82% | |
| 6 | Hong Ho-cheng (洪和成) | Independent | 366 | 0.74% | |
| Total voters | Total voters | Total voters | 117,913 | 117,913 | 117,913 |
| Valid votes | Valid votes | Valid votes | 49,229 | 49,229 | 49,229 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 41.75% | 41.75% | 41.75% |

### Lienchiang County

Political context prior to the elections
Results of Past Lienchiang County Magistrate Elections :
| Year | Winning Candidate | Political Party |
| 1997 | Liu Li-qun | Kuomintang |
| 2001 | Chen Hsueh-sheng | People First Party |
| 2005 | Chen Hsueh-sheng | People First Party |
| 2009 | Yang Sui-sheng | Kuomintang |
| 2014 | Liu Cheng-ying | Kuomintang |
Highest vote share :
| Party | Year | Vote share % |
| Democratic Progressive Party | 2016 presidential election | 17% |
| Kuomintang | 2009 local election | 49% |
2016 election results :
| Party | Presidential % | Legislative seat | Legislative % |
| Democratic Progressive Party | 16.54% | 0 | - |
| Kuomintang | 68.60% | 1 | 68.07% |
| New Power Party | - | 0 | - |
| Taiwan Solidarity Union | - | 0 | - |
| People First Party | 14.86% | 0 | - |
| Independent/Others | - | 0 | 31.93% |
Results of the primary
2018 Kuomintang Lienchiang County magistrate primary results :
| Candidates | Place | Result |
| Liu Cheng-ying | Called In | Walkover |
Opinion polls
| Poll organization | Date of completion | Liu Cheng-ying | Su Po-hao | Not sure | Lead |
| ETtoday | July 8, 2018 | 50% | 9.8% | 24.2% | 40.2% |
Results
| District | Su Po-hao | Chu Hsiu-chen | Wei Yao-kan | Liu Cheng-ying |
| Votes | % | Votes | % | Votes | % | Votes | % |
| Nangan Township (南竿鄉) | 542 | 12.98 | 871 | 20.86 | 169 | 4.05 | 2,594 | 62.12 |
| Beigan Township (北竿鄉) | 135 | 9.17 | 147 | 9.99 | 51 | 3.46 | 1,139 | 77.38 |
| Luguang Township (莒光鄉) | 100 | 9.17 | 182 | 16.70 | 76 | 6.97 | 732 | 67.16 |
| Dongyin Township (東引鄉) | 150 | 22.39 | 84 | 12.54 | 40 | 5.97 | 396 | 59.10 |
2018 Lienchiang County mayoral results :
| No. | Candidate | Party | Votes | Percentage | |
| 1 | Su Po-hao (蘇柏豪) | Tree Party | 927 | 12.51% | |
| 2 | Chu Hsiu-chen (朱秀珍) | Independent | 1,284 | 17.33% | |
| 3 | Wei Yao-kan (魏耀乾) | Independent | 356 | 4.54% | |
| 4 | Liu Cheng-ying (劉增應) | Kuomintang | 4,861 | 65.62% | |
| Total voters | Total voters | Total voters | 10,773 | 10,773 | 10,773 |
| Valid votes | Valid votes | Valid votes | 7,408 | 7,408 | 7,408 |
| Invalid votes | Invalid votes | Invalid votes | | | |
| Voter turnout | Voter turnout | Voter turnout | 68.76% | 68.76% | 68.76% |