# 2018 Seoul mayoral election

The 2018 Seoul mayoral election was held on 13 June 2018 as part of the 7th local elections. Incumbent Park Won-soon was elected for his third consecutive term; the South Korean Public Election Act places a limit of three consecutive terms on holders of the post, so that Park will not be able to run in the next mayoral election.

## Selection of candidates
### Democratic Party of Korea

2018 Democratic Party of Korea Seoul mayoral primary results :
| Candidate | Place | Results |
| Park Won-soon | Nominated | 66.3% |
| Park Young-sun | 2nd | 19.6% |
| Woo Sang-ho | 3rd | 14.1% |
| | | 100% |

### Liberty Korea Party

2018 Liberty Korea Party Seoul mayoral primary results :
| Candidate | Place | Results |
| Kim Moon-soo | Nominated | Walkover |

### Bareunmirae Party

2018 Bareunmirae Party Seoul mayoral primary results :
| Candidate | Place | Results |
| Ahn Cheol-soo | Nominated | Walkover |

### Justice Party

2018 Justice Party Seoul mayoral primary results :
| Candidate | Place | Results |
| Kim Jong-min | Nominated | 58.1% |
| Chung Ho-jin | 2nd | 41.9% |
| | | 100% |

## Final candidates

| Name | Age | Party | Notes |
| Park Won-soon | 62 | Democratic Party of Korea | Mayor of Seoul (2011–present) |
| Kim Moon-soo | 66 | Liberty Korea Party | Member of the National Assembly (1996–2006); Governor of Gyeonggi Province (2006–2014) |
| Ahn Cheol-soo | 56 | Bareunmirae Party | Member of the National Assembly (2013–2017); Co-leader of the New Politics Alliance for Democracy (2014); Leader of the People's Party (2016, 2017–2018) |
| Kim Jong-min | 47 | Justice Party | |
| Kim Jin-sook | 39 | Minjung Party | |
| Ihn Ji-yeon | 45 | Korean Patriots' Party | |
| Sin Jie-ye | 27 | Green Party Korea | |
| Woo In-cheol | 33 | Our Future | |
| Choi Tae-hyeon | 62 | Chinbak Yeondae | |

## Results
### Summary

2018 Seoul mayoral election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Park Won-soon | 2,619,497 | 52.79 |
| | Liberty Korea | Kim Moon-soo | 1,158,487 | 23.34 |
| | Bareunmirae | Ahn Cheol-soo | 970,374 | 19.55 |
| | Green | Sin Jie-ye | 82,874 | 1.67 |
| | Justice | Kim Jong-min | 81,664 | 1.64 |
| | Minjung | Kim Jin-sook | 22,134 | 0.44 |
| | Our Future | Woo In-cheol | 11,599 | 0.23 |
| | Patriots' | Ihn Ji-yeon | 11,222 | 0.22 |
| | Chinbak Yeondae | Choi Tae-hyeon | 4,021 | 0.08 |
| Total votes | Total votes | Total votes | 4,961,872 | 100.00 |
| Rejected ballots | Rejected ballots | Rejected ballots | 57,226 | – |
| Turnout | Turnout | Turnout | 5,019,098 | 59.89 |
| Registered electors | Registered electors | Registered electors | 8,380,947 | |

### By districts

| Districts | Park Won-soon DP | Park Won-soon DP | Kim Moon-soo LKP | Kim Moon-soo LKP | Ahn Cheol-soo Bareunmirae | Ahn Cheol-soo Bareunmirae | Kim Jong-min JP | Kim Jong-min JP | Kim Jin-sook Minjung | Kim Jin-sook Minjung | Ihn Ji-yeon KPP | Ihn Ji-yeon KPP | Sin Jie-ye GPK | Sin Jie-ye GPK | Woo In-cheol Our Future | Woo In-cheol Our Future | Choi Tae-hyeon Chin. Yeon. | Choi Tae-hyeon Chin. Yeon. | Total votes |
| Districts | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | Total votes |
| Jongno District | 41,148 | 51.37 | 18,777 | 23.44 | 15,946 | 19.90 | 1,469 | 1.83 | 358 | 0.44 | 223 | 0.27 | 1,896 | 2.36 | 215 | 0.26 | 59 | 0.07 | 80,091 |
| Jung District | 34,243 | 52.28 | 15,618 | 23.84 | 12,814 | 19.56 | 1,023 | 1.56 | 279 | 0.42 | 193 | 0.29 | 1,076 | 1.64 | 149 | 0.22 | 96 | 0.14 | 65,491 |
| Yongsan District | 53,964 | 47.06 | 31,073 | 27.09 | 24,074 | 20.99 | 2,151 | 1.87 | 436 | 0.38 | 231 | 0.20 | 2,392 | 2.08 | 226 | 0.19 | 115 | 0.10 | 114,662 |
| Seongdong District | 84,106 | 53.96 | 34,878 | 22.37 | 30,379 | 19.49 | 2,594 | 1.66 | 689 | 0.44 | 309 | 0.19 | 2,418 | 1.55 | 370 | 0.23 | 123 | 0.07 | 155,866 |
| Gwangjin District | 99,366 | 55.70 | 38,606 | 21.64 | 32,310 | 18.11 | 3,077 | 1.72 | 804 | 0.45 | 376 | 0.21 | 3,222 | 1.80 | 482 | 0.27 | 125 | 0.07 | 178,368 |
| Dongdaemun District | 93,913 | 53.44 | 40,984 | 23.32 | 33,437 | 19.02 | 2,731 | 1.55 | 827 | 0.47 | 434 | 0.24 | 2,848 | 1.62 | 404 | 0.22 | 145 | 0.08 | 175,723 |
| Jungnang District | 109,318 | 55.71 | 45,905 | 23.39 | 33,672 | 17.16 | 2,662 | 1.35 | 959 | 0.48 | 519 | 0.26 | 2,561 | 1.30 | 429 | 0.21 | 185 | 0.09 | 196,210 |
| Seongbuk District | 119,898 | 54.62 | 47,274 | 21.53 | 42,105 | 19.18 | 3,750 | 1.70 | 918 | 0.41 | 523 | 0.23 | 4,349 | 1.98 | 497 | 0.22 | 187 | 0.08 | 219,501 |
| Gangbuk District | 85,839 | 55.74 | 33,537 | 21.77 | 28,138 | 18.27 | 2,396 | 1.55 | 718 | 0.46 | 481 | 0.31 | 2,276 | 1.47 | 431 | 0.27 | 165 | 0.10 | 153,981 |
| Dobong District | 92,172 | 53.71 | 39,099 | 22.78 | 33,308 | 19.40 | 2,767 | 1.61 | 810 | 0.47 | 445 | 0.25 | 2,430 | 1.41 | 434 | 0.25 | 144 | 0.08 | 171,609 |
| Nowon District | 150,657 | 53.88 | 54,461 | 19.47 | 62,193 | 22.24 | 4,866 | 1.74 | 1,448 | 0.51 | 609 | 0.21 | 4,364 | 1.56 | 732 | 0.26 | 248 | 0.08 | 279,578 |
| Eunpyeong District | 131,287 | 55.77 | 49,071 | 20.84 | 44,033 | 18.70 | 4,167 | 1.77 | 1,121 | 0.47 | 533 | 0.22 | 4,421 | 1.87 | 522 | 0.22 | 216 | 0.09 | 235,371 |
| Seodaemun District | 87,486 | 54.05 | 34,514 | 21.32 | 31,494 | 19.45 | 2,842 | 1.75 | 879 | 0.54 | 333 | 0.20 | 3,780 | 2.33 | 394 | 0.24 | 120 | 0.07 | 161,842 |
| Mapo District | 105,956 | 54.26 | 40,249 | 20.61 | 37,233 | 19.06 | 4,369 | 2.23 | 927 | 0.47 | 386 | 0.19 | 5,475 | 2.80 | 496 | 0.25 | 170 | 0.08 | 195,261 |
| Yangcheon District | 125,557 | 53.18 | 53,780 | 22.77 | 47,056 | 19.93 | 4,052 | 1.71 | 979 | 0.41 | 507 | 0.21 | 3,455 | 1.46 | 525 | 0.22 | 180 | 0.07 | 236,091 |
| Gangseo District | 168,733 | 56.16 | 64,676 | 21.52 | 54,090 | 18.00 | 5,356 | 1.78 | 1,522 | 0.50 | 690 | 0.22 | 4,387 | 1.46 | 696 | 0.23 | 259 | 0.08 | 300,409 |
| Guro District | 113,799 | 54.51 | 48,981 | 23.46 | 37,784 | 18.09 | 3,363 | 1.61 | 1,006 | 0.48 | 436 | 0.20 | 2,709 | 1.29 | 494 | 0.23 | 191 | 0.09 | 208,763 |
| Geumcheon District | 64,662 | 56.06 | 25,156 | 21.81 | 21,106 | 18.29 | 1,539 | 1.33 | 681 | 0.59 | 334 | 0.28 | 1,505 | 1.30 | 235 | 0.20 | 117 | 0.10 | 115,335 |
| Yeongdeungpo District | 100,899 | 52.10 | 46,666 | 24.09 | 37,945 | 19.59 | 3,145 | 1.62 | 988 | 0.51 | 421 | 0.21 | 3,008 | 1.55 | 416 | 0.21 | 155 | 0.08 | 193,643 |
| Dongjak District | 114,563 | 54.31 | 46,094 | 21.85 | 41,257 | 19.55 | 3,564 | 1.68 | 863 | 0.40 | 382 | 0.18 | 3,535 | 1.67 | 522 | 0.24 | 152 | 0.07 | 210,932 |
| Gwanak District | 152,069 | 58.02 | 47,686 | 18.19 | 49,248 | 18.79 | 4,745 | 1.81 | 1,490 | 0.56 | 606 | 0.23 | 5,336 | 2.03 | 684 | 0.26 | 230 | 0.08 | 262,094 |
| Seocho District | 96,452 | 42.86 | 69,910 | 31.06 | 50,486 | 22.43 | 3,010 | 1.33 | 600 | 0.26 | 454 | 0.20 | 3,535 | 1.57 | 459 | 0.20 | 106 | 0.04 | 225,012 |
| Gangnam District | 107,743 | 40.82 | 87,305 | 33.07 | 58,987 | 22.34 | 3,723 | 1.41 | 721 | 0.27 | 586 | 0.22 | 4,240 | 1.60 | 499 | 0.18 | 134 | 0.05 | 263,938 |
| Songpa District | 171,592 | 49.61 | 90,144 | 26.06 | 71,367 | 20.63 | 4,952 | 1.43 | 1,207 | 0.34 | 686 | 0.19 | 4,861 | 1.40 | 780 | 0.22 | 230 | 0.06 | 345,819 |
| Gangdong District | 114,075 | 52.74 | 54,043 | 24.98 | 39,912 | 18.45 | 3,351 | 1.54 | 904 | 0.41 | 525 | 0.24 | 2,795 | 1.29 | 508 | 0.23 | 169 | 0.07 | 216,282 |
| Total | 2,619,497 | 52.79 | 1,158,487 | 23.34 | 970,374 | 19.55 | 81,664 | 1.64 | 22,134 | 0.44 | 11,222 | 0.22 | 82,874 | 1.67 | 11,599 | 0.23 | 4,021 | 0.08 | 4,961,872 |