# Ōita 3rd district

Ōita 3rd district (大分県第3区, Ōita-ken dai-sanku or simply 大分3区, Ōita-sanku ) is a single-member constituency of the House of Representatives in the national Diet of Japan located in Ōita Prefecture.

## Areas covered
### Since 2013

* Beppu
* Bungotakada
* Kitsuki
* Nakatsu
* Kunisaki
* Usa
* Hayami District
* Higashikunisaki District

### 2002 - 2013

* Beppu
* Bungotakada
* Kitsuki
* Nakatsu
* Usa
* Hayami District
* Higashikunisaki District
* Nishikunisaki District
* Shimoge District
* Usa District

### 1994 - 2002

* Beppu
* Hita
* Ōita District
* Kusu District
* Hita District

## List of representatives

| Election | Representative | Party |
| 1996 | Eijiro Hata [ja] | NFP |
| 1996 | Eijiro Hata [ja] | Sun |
| 1996 | Eijiro Hata [ja] | GGP |
| 1996 | Eijiro Hata [ja] | Democratic |
| 2000 | Takeshi Iwaya | LDP |
| 2003 | Takeshi Iwaya | LDP |
| 2005 | Takeshi Iwaya | LDP |
| 2009 | Katsuhiko Yokomitsu | Democratic |
| 2012 | Takeshi Iwaya | LDP |
| 2014 | Takeshi Iwaya | LDP |
| 2017 | Takeshi Iwaya | LDP |
| 2021 | Takeshi Iwaya | LDP |
| 2024 | Takeshi Iwaya | LDP |

## Election results
### 2024

2024 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya (Incumbent) | 87,301 | 55.23 | 3.19 |
| | CDP | Kayako Kobayashi | 60,207 | 38.09 | 3.49 |
| | JCP | Mitsuyoshi Otsuka | 10,550 | 6.68 | N/A |
| Majority | Majority | Majority | 27,094 | 17.14 | |
| Registered electors | Registered electors | Registered electors | 291,486 | | |
| Turnout | Turnout | Turnout | | 56.07 | 3.60 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2021

2021 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya (Incumbent) | 102,807 | 58.42 | 4.26 |
| | CDP | Katsuhiko Yokomitsu | 73,159 | 41.58 | New |
| Majority | Majority | Majority | 29,648 | 16.84 | |
| Registered electors | Registered electors | Registered electors | 301,700 | | |
| Turnout | Turnout | Turnout | | 59.67 | 0.10 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2017

2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya (Incumbent) | 99,412 | 54.16 | 7.51 |
| | CDP | Katsuhiko Yokomitsu (Won PR seat) | 84,133 | 45.84 | New |
| Majority | Majority | Majority | 15,279 | 8.32 | |
| Registered electors | Registered electors | Registered electors | 312,610 | | |
| Turnout | Turnout | Turnout | | 59.77 | 3.04 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2014

2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya (Incumbent) | 106,257 | 61.67 | 11.33 |
| | Democratic | Hideki Urano | 48,389 | 28.08 | 3.42 |
| | JCP | Mitsuyoshi Otsuka | 17,657 | 10.25 | 6.11 |
| Majority | Majority | Majority | 57,868 | 33.59 | |
| Registered electors | Registered electors | Registered electors | 312,365 | | |
| Turnout | Turnout | Turnout | | 56.73 | |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2012

2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya | 100,606 | 50.34 | 2.85 |
| | Democratic | Katsuhiko Yokomitsu (Incumbent) | 62,949 | 31.50 | 19.54 |
| | Your | Masatoshi Kan | 28,013 | 14.02 | New |
| | JCP | Mitsuyoshi Otsuka | 8,301 | 4.14 | N/A |
| Majority | Majority | Majority | 37,657 | 18.84 | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic |

### 2009

2009 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Katsuhiko Yokomitsu | 121,031 | 51.04 | 4.12 |
| | LDP | Takeshi Iwaya (Incumbent) (Won PR seat) | 112,602 | 47.49 | 5.59 |
| | Happiness Realization | Tetsuya Toshimitsu | 3,489 | 1.47 | New |
| Majority | Majority | Majority | 8,429 | 3.55 | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP |

### 2005

2005 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya (Incumbent) | 127,656 | 53.08 | 1.82 |
| | Democratic | Katsuhiko Yokomitsu (Won PR seat) | 112,833 | 46.92 | N/A |
| Majority | Majority | Majority | 14,823 | 6.16 | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2003

2003 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya (Incumbent) | 123,798 | 51.26 | 9.05 |
| | Social Democratic | Katsuhiko Yokomitsu (Won PR seat) | 111,180 | 46.04 | New |
| | JCP | Tsutomu Ogawa | 6,521 | 2.70 | 3.68 |
| Majority | Majority | Majority | 12,618 | 5.22 | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2000

2000 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Takeshi Iwaya | 95,046 | 60.31 | 19.05 |
| | Democratic | Taro Nakamura | 50,024 | 31.74 | New |
| | JCP | Tsutomu Ogawa | 10,057 | 6.38 | 0.37 |
| | Liberal League | Tsuneaki Umeki | 2,470 | 1.57 | 0.27 |
| Majority | Majority | Majority | 45,022 | 28.57 | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic |

### 1996

1996 :
| Party | Party | Candidate | Votes | % | ±% |
| | New Frontier | Eijiro Hata [ja] | 77,936 | 50.69 | New |
| | LDP | Tetsuaki Makino | 63,440 | 41.26 | New |
| | JCP | Yōko Hino | 10,375 | 6.75 | New |
| | Liberal League | Tsuneaki Umeki | 1,998 | 1.30 | New |
| Majority | Majority | Majority | 14,496 | 9.43 | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | New Frontier win (new seat) | New Frontier win (new seat) | New Frontier win (new seat) | New Frontier win (new seat) |