# Kanagawa 18th district

Kanagawa 18th district (神奈川県第18区, Kanagawa-ken dai-jyūhakku or 神奈川18区, Kanagawa jyūhakku) is a constituency of the House of Representatives in the Diet of Japan (national legislature). It is located in western Kawasaki. The district consists of Takatsu and Nakahara Wards of Kawasaki City . As of December 1, 2020, 449,625 eligible voters were registered in the district.
In 2003, the first election since the establishment of this electoral district, Takkeshi Hidaka of the Democratic Party was elected, and Daishirō Yamagiwa of the Liberal Democratic Party was proportionally restored. Since then, he has alternated between Yamagiwa in 2005 and Hidaka in 2009. Yamagiwa held the district between 2012 and 2024.

## List of members representing the district

| Member | Party | Dates | Electoral history | Notes |
| Takeshi Hidaka | Democratic | November 10, 2003 – August 8, 2005 | Redistricted from the 7th district and Re-elected in 2003. Lost re-election. | Lost re-election in the Southern Kanto PR block. |
| Daishirō Yamagiwa | Liberal Democratic | September 12, 2005 – July 21, 2009 | Re-elected in 2005. Lost re-election. | Elected in 2003 by the Southern Kanto PR block. Lost re-election in the Southern Kanto PR block. |
| Takeshi Hidaka | Democratic | August 31, 2009 – July 11, 2012 | Elected in 2009. Lost re-election. | Lost re-election in the Southern Kanto PR block. |
| Takeshi Hidaka | Tomorrow | July 11, 2012 – November 16, 2012 | Elected in 2009. Lost re-election. | Lost re-election in the Southern Kanto PR block. |
| Daishirō Yamagiwa | Liberal Democratic | December 17, 2012 – October 9, 2024 | Elected in 2012. Re-elected in 2014. Re-elected in 2017. Re-elected in 2021. | Minister of State for Economic and Fiscal Policy (2021 – 2022) |
| Hajime Sohno [ja] | CDP | 2024 – | |

## Election results
### 2024

2024 :
| Party | Party | Candidate | Votes | % | ±% |
| | CDP | Hajime Sohno | 68,632 | 30.7 | 4.9 |
| | DPP | Yoshitaka Nishioka (elected in PR)) | 52,596 | 23.5 | |
| | LDP | Daishirō Yamagiwa (elected in PR)) | 52,593 | 23.5 | 24.2 |
| | Ishin | Mitsuhiro Yokota | 27,727 | 12.4 | 4.1 |
| | JCP | Chikako Kimishima | 21,898 | 9.8 | |
| Turnout | Turnout | Turnout | | 56.0 | 1.2 |
| Registered electors | Registered electors | Registered electors | 413,241 | | |
| | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP |

### 2021

General election 2021: Kanagawa's 18th :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Daishirō Yamagiwa | 120,365 | 47.7 | 3.4 |
| | CDP | Kazuya Mimura | 90,390 | 35.8 | New |
| | Ishin | Mitsuhiro Yokota | 41,562 | 16.5 | New |
| Turnout | Turnout | Turnout | 252,317 | 57.2 | 5.9 |
| Registered electors | Registered electors | Registered electors | 451,301 | | |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2017

General election 2017: Kanagawa's 18th :
| Party | Party | Candidate | Votes | % |
| | LDP | Daishirō Yamagiwa | 111,285 | 51.1 |
| | Kibō no Tō | Kazuya Mimura | 66,057 | 30.4 |
| | JCP | Yasuhisa Wakabayashi | 40,252 | 18.5 |
| Total votes | Total votes | Total votes | 217,594 | 100.0 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2014

General election 2014: Kanagawa's 18th :
| Party | Party | Candidate | Votes | % |
| | LDP | Daishirō Yamagiwa | 86,869 | 40.0 |
| | Future Generations | Hiroshi Nakada | 59,138 | 27.2 |
| | Ishin | Itaru Kitamura | 26,691 | 12.3 |
| | JCP | Yoshio Shioda | 24,616 | 11.3 |
| | People's Life | Takeshi Hidaka | 20,105 | 9.2 |
| Total votes | Total votes | Total votes | 217,419 | 100.0 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2012

General election 2012: Kanagawa's 18th :
| Party | Party | Candidate | Votes | % |
| | LDP | Daishirō Yamagiwa | 82,333 | 40.9 |
| | Your | Jirō Funakawa | 43,873 | 21.8 |
| | Democratic | Shinsuke Amiya | 34,205 | 17.0 |
| | Tomorrow | Takeshi Hidaka | 25,279 | 12.5 |
| | JCP | Masako Yamazaki | 15,514 | 7.7 |
| Total votes | Total votes | Total votes | 201,204 | 100.0 |
| | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow |

### 2009

General election 2009: Kanagawa's 18th :
| Party | Party | Candidate | Votes | % |
| | Democratic | Takeshi Hidaka | 110,239 | 48.8 |
| | LDP | Daishirō Yamagiwa | 82,221 | 36.4 |
| | JCP | Hiroyuki Muneta | 15,832 | 7.0 |
| | Your | Kōtarō Fujisaki | 14,325 | 6.3 |
| | Minor party | Hiroko Tōyama | 3,209 | 1.4 |
| Total votes | Total votes | Total votes | 225,826 | 100.0 |
| | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP |

### 2005

General election 2005: Kanagawa's 18th :
| Party | Party | Candidate | Votes | % |
| | LDP | Daishirō Yamagiwa | 111,787 | 53.7 |
| | Democratic | Takeshi Hidaka | 77,877 | 37.4 |
| | JCP | Hiroyuki Muneta | 18,345 | 8.8 |
| Total votes | Total votes | Total votes | 208,009 | 100.0 |
| | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic |

### 2003

General election 2003: Kanagawa's 18th :
| Party | Party | Candidate | Votes | % |
| | Democratic | Takeshi Hidaka | 64,879 | 38.0 |
| | LDP | Daishirō Yamagiwa (elected by PR) | 58,001 | 33.9 |
| | Independent | Eiichi Ogawa | 15,136 | 8.9 |
| | Independent | Keiko Hirata | 13,267 | 7.8 |
| | JCP | Hiroyuki Muneta | 13,084 | 7.7 |
| | Social Democratic | Hideaki Takemura | 5,610 | 3.3 |
| | Independent | Yukio Anzai | 875 | 0.5 |
| Total votes | Total votes | Total votes | 170,852 | 100.0 |
| | Democratic win (new seat) | Democratic win (new seat) | Democratic win (new seat) | Democratic win (new seat) |