# Nagano 3rd district

Nagano 3rd district (長野県第3区, Nagano-ken dai-sanku or 長野3区, Nagano sanku) is a single-member constituency of the House of Representatives, the lower house of the national Diet of Japan. It is located in central and eastern part of Nagano Prefecture and consists of Ueda City, Komoro City, Chikuma City, Saku City, Tōmi City, Minamisaku District, Kitasaku District, Chiisagata District and Hanishina District. As of December 2020, 400,529 eligible voters were registered in the district.
Yousei Ide, a Liberal Democrat, has represented this district since December 2014.

## List of members representing the district

| Member | Party | Dates | Electoral history | Notes |
| Tsutomu Hata | New Frontier | October 21, 1996 – December 26, 1996 | Redistricted from the former 2nd district and Re-elected in 1996. Re-elected in 2000. Re-elected in 2003. Re-elected in 2005. Re-elected in 2009. Retired. | Prime Minister of Japan (1994) |
| Tsutomu Hata | Sun | December 26, 1996 – January 23, 1998 | Redistricted from the former 2nd district and Re-elected in 1996. Re-elected in 2000. Re-elected in 2003. Re-elected in 2005. Re-elected in 2009. Retired. | Prime Minister of Japan (1994) |
| Tsutomu Hata | Good Governance | January 23, 1998 – April 27, 1998 | Redistricted from the former 2nd district and Re-elected in 1996. Re-elected in 2000. Re-elected in 2003. Re-elected in 2005. Re-elected in 2009. Retired. | Prime Minister of Japan (1994) |
| Tsutomu Hata | Democratic | April 27, 1998 – November 16, 2012 | Redistricted from the former 2nd district and Re-elected in 1996. Re-elected in 2000. Re-elected in 2003. Re-elected in 2005. Re-elected in 2009. Retired. | Prime Minister of Japan (1994) |
| Yoshiyuki Terashima | Democratic | December 17, 2012 – November 21, 2014 | Elected in 2012. Lost re-election. | Lost re-election in the Hokurikushin'etsu PR block. |
| Yousei Ide | Innovation | December 15, 2014 – March 27, 2016 | Re-elected in 2014. Re-elected in 2017. | Elected in 2012 in the Hokurikushin'etsu PR block. Elected in 2024 in the Hokurikushin'etsu PR block. |
| Yousei Ide | Democratic | March 27, 2016 – October 3, 2017 | Re-elected in 2014. Re-elected in 2017. | Elected in 2012 in the Hokurikushin'etsu PR block. Elected in 2024 in the Hokurikushin'etsu PR block. |
| Yousei Ide | Kibō no Tō | October 3, 2017 – May 7, 2018 | Re-elected in 2014. Re-elected in 2017. | Elected in 2012 in the Hokurikushin'etsu PR block. Elected in 2024 in the Hokurikushin'etsu PR block. |
| Yousei Ide | Independent | May 7, 2018 – December 21, 2019 | Re-elected in 2014. Re-elected in 2017. | Elected in 2012 in the Hokurikushin'etsu PR block. Elected in 2024 in the Hokurikushin'etsu PR block. |
| Yousei Ide | LDP | December 21, 2019 – October 9 2024 | Re-elected in 2014. Re-elected in 2017. | Elected in 2012 in the Hokurikushin'etsu PR block. Elected in 2024 in the Hokurikushin'etsu PR block. |
| Takeshi Kōzu | CDP | Octoberber 29, 2024 – present | |

## Election results
### 2024

2024 :
| Party | Party | Candidate | Votes | % | ±% |
| | CDP | Takeshi Kōzu | | | |
| | LDP | Yōsei Ide | | | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP |

### 2021

2021 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | LDP | Yōsei Ide | 120,023 | 51.5 |
| | CDP | Takeshi Kōzu (elected by PR) | 109,179 | 46.9 |
| | Anti-NHK | Takao Ike | 3,722 | 1.6 |
| Registered electors | Registered electors | Registered electors | 399,168 | |
| Turnout | Turnout | Turnout | | 59.32 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2017

2017 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | Kibō no Tō | Yousei Ide | 127,542 | 53.1 |
| | LDP | Hitoshi Kiuchi | 74,722 | 31.1 |
| | JCP | Yuka Koganezawa | 34,462 | 14.3 |
| | Happiness Realization | Yukihisa Oikawa | 3,687 | 1.5 |
| Total votes | Total votes | Total votes | 240,413 | 100.0 |
| | Kibō no Tō hold | Kibō no Tō hold | Kibō no Tō hold | Kibō no Tō hold |

### 2014

2014 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | Innovation | Yousei Ide | 77,289 | 34.4 |
| | Democratic | Yoshiyuki Terashima | 63,397 | 28.2 |
| | LDP | Hitoshi Kiuchi (re-elected by PR) | 56,365 | 25.1 |
| | JCP | Chiaki Karasawa | 27,947 | 12.4 |
| Total votes | Total votes | Total votes | 224,998 | 100.0 |
| | Ishin gain from Democratic | Ishin gain from Democratic | Ishin gain from Democratic | Ishin gain from Democratic |

### 2012

2012 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Yoshiyuki Terashima | 69,843 | 27.7 |
| | Your | Yousei Ide (elected by PR) | 67,750 | 26.9 |
| | LDP | Hitoshi Kiuchi (elected by PR) | 62,539 | 24.8 |
| | Restoration | Taisuke Ide | 29,905 | 11.8 |
| | JCP | Syōsuke Iwaya | 21,433 | 8.5 |
| Total votes | Total votes | Total votes | 251,470 | 100.0 |

### 2009

2009 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tsutomu Hata | 138,614 | 47.5 |
| | LDP | Tadao Iwasaki | 106,574 | 36.5 |
| | JCP | Syōsuke Iwaya | 40,948 | 14.0 |
| | Happiness Realization | Manabu Ebara | 5,576 | 1.9 |
| Total votes | Total votes | Total votes | 291,712 | 100.0 |

### 2005

2005 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tsutomu Hata | 143,728 | 51.1 |
| | LDP | Tadao Iwasaki | 102,889 | 36.6 |
| | JCP | Syōsuke Iwaya | 34,669 | 12.3 |
| Total votes | Total votes | Total votes | 281,286 | 100.0 |

### 2003

2003 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tsutomu Hata | 150,203 | 58.5 |
| | LDP | Tadao Iwasaki (re-elected by PR) | 78,364 | 30.5 |
| | JCP | Syōsuke Iwaya | 28,083 | 10.9 |
| Total votes | Total votes | Total votes | 256,650 | 100.0 |

### 2000

2000 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tsutomu Hata | 163,382 | 61.2 |
| | LDP | Tadao Iwasaki (elected by PR) | 67,002 | 25.1 |
| | JCP | Ken'ichi Nakazawa | 34,110 | 12.8 |
| | Independent | Tokio Hosoya | 2,276 | 0.9 |
| Total votes | Total votes | Total votes | 266,770 | 100.0 |

### 1996

1996 Japanese general election :
| Party | Party | Candidate | Votes | % |
| | New Frontier | Tsutomu Hata | 161,670 | 62.6 |
| | NP-Sakigake | Syōichi Ide | 70,960 | 27.5 |
| | JCP | Mizue Matsuzawa | 25,600 | 9.9 |
| Total votes | Total votes | Total votes | 258,230 | 100.0 |
| | New Frontier win (new seat) | New Frontier win (new seat) | New Frontier win (new seat) | New Frontier win (new seat) |