# Chiba 7th district

Chiba 7th district (千葉県第7区, Chiba-ken dai-nanaku or simply 千葉7区, Chiba-nanaku) is a single-member constituency of the House of Representatives in the national Diet of Japan located in Chiba Prefecture.

## Areas covered
### Since 2022

* Nagareyama
* Noda

### 2013 - 2022

* Part of Matsudo
* Nagareyama
* Noda

### 1994 - 2013

* Part of Matsudo
* Nagareyama
* Noda
* Part of Higashi-Katsushika District
** Sekiyado

## List of representatives

| Election | Representative | Party | Notes |
| 1996 | Kazuna Matsumoto [ja] | LDP | |
| 2000 | Kazuna Matsumoto [ja] | LDP | |
| 2003 | Akira Uchiyama | Democratic | |
| 2005 | Kazumi Matsumoto [ja] | LDP | Resigned on January 18, 2006 because of the electoral scandal. |
| 2006 by-el | Kazumi Ota | Democratic | |
| 2009 | Akira Uchiyama | Democratic | |
| 2009 | Akira Uchiyama | Kizuna | |
| 2009 | Akira Uchiyama | PLF | |
| 2009 | Akira Uchiyama | Tomorrow | |
| 2012 | Ken Saitō | LDP | |
| 2014 | Ken Saitō | LDP | |
| 2017 | Ken Saitō | LDP | |
| 2021 | Ken Saitō | LDP | |
| 2024 | Ken Saitō | LDP | |

## Election Results
### 2024

2024 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Ken Saitō (Incumbent) | 82,606 | 54.17 | 0.82 |
| | DPP | Kota Hirado | 51,749 | 33.94 | New |
| | JCP | Kiyoko Tokumasu | 18,127 | 11.89 | N/A |
| Majority | Majority | Majority | 30,857 | 20.23 | |
| Registered electors | Registered electors | Registered electors | 296,878 | | |
| Turnout | Turnout | Turnout | | 52.69 | 1.85 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2021

2021 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Ken Saitō (Incumbent) | 127,548 | 54.99 | 0.46 |
| | CDP | Chiharu Takeuchi [ja] | 71,048 | 30.63 | New |
| | Ishin | Akira Uchiyama | 28,594 | 12.33 | New |
| | Anti-NHK | Kunihiro Watanabe | 4,749 | 2.05 | New |
| Majority | Majority | Majority | 56,500 | 24.36 | |
| Registered electors | Registered electors | Registered electors | 434,040 | | |
| Turnout | Turnout | Turnout | | 54.54 | 3.12 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2017

2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Ken Saitō (Incumbent) | 115,731 | 54.53 | 0.52 |
| | CDP | Sadamichi Ishizuka | 51,776 | 24.40 | New |
| | Kibō no Tō | Rina Hatano | 29,706 | 14.00 | New |
| | JCP | Takao Watanabe | 15,025 | 7.07 | 6.47 |
| Majority | Majority | Majority | 63,955 | 30.13 | |
| Registered electors | Registered electors | Registered electors | 421,071 | | |
| Turnout | Turnout | Turnout | | 51.42 | 0.01 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2014

2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Ken Saitō (Incumbent) | 111,030 | 55.05 | 9.24 |
| | Innovation | Sadamichi Ishizuka | 48,651 | 24.12 | New |
| | JCP | Takao Watanabe | 27,306 | 13.54 | 8.26 |
| | Social Democratic | Harumasa Abe | 14,718 | 7.29 | 4.63 |
| Majority | Majority | Majority | 62,379 | 30.93 | |
| Registered electors | Registered electors | Registered electors | 403,843 | | |
| Turnout | Turnout | Turnout | | 51.41 | 7.13 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2012

2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Ken Saitō | 104,839 | 45.81 | 5.10 |
| | Restoration | Chikatsu Hayashi | 29,665 | 12.96 | New |
| | Democratic | Ken Nakazawa | 28,970 | 12.66 | 36.39 |
| | Tomorrow | Akira Uchiyama (Incumbent) | 24,216 | 10.58 | New |
| | Your | Sadamichi Ishizuka | 22,999 | 10.05 | New |
| | JCP | Takao Watanabe | 12,080 | 5.28 | N/A |
| | Social Democratic | Katsuko Murakami | 6,096 | 2.66 | 6.35 |
| Majority | Majority | Majority | 75,174 | 32.85 | |
| Registered electors | Registered electors | Registered electors | 401,267 | | |
| Turnout | Turnout | Turnout | | 58.54 | 7.46 |
| | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow |

### 2009

2009 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Akira Uchiyama | 125,647 | 49.05 | 5.83 |
| | LDP | Ken Saitō (Won PR seat) | 104,262 | 40.71 | 8.36 |
| | Social Democratic | Keiko Ueda | 23,086 | 9.01 | N/A |
| | Happiness Realization | Masahiko Makino | 3,140 | 1.23 | New |
| Majority | Majority | Majority | 21,385 | 8.34 | |
| Registered electors | Registered electors | Registered electors | 396,926 | | |
| Turnout | Turnout | Turnout | | 66.00 | 1.25 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2006 by-election

2006 Chiba 7th district by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Kazumi Ota | 87,046 | 45.91 | 2.69 |
| | LDP | Ken Saitō | 86,091 | 45.40 | 3.67 |
| | JCP | Kiyoko Tokumasu | 14,274 | 7.53 | 0.18 |
| | Independent | Shinichiro Miyaoka | 1,530 | 0.81 | N/A |
| | Independent | Takanori Kobayashi | 681 | 0.35 | New |
| Majority | Majority | Majority | 955 | 0.51 | |
| 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 | Kazumi Matsumoto [ja] | 118,801 | 49.07 | 7.49 |
| | Democratic | Akira Uchiyama (Incumbent) (Won PR seat) | 104,630 | 43.22 | 4.81 |
| | JCP | Kiyoko Tokumasu | 18,658 | 7.71 | 0.46 |
| Majority | Majority | Majority | 14,171 | 5.85 | |
| Registered electors | Registered electors | Registered electors | 384,718 | | |
| Turnout | Turnout | Turnout | | 64.75 | 9.14 |
| | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic |

### 2003

2003 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Akira Uchiyama | 96,915 | 48.03 | 18.30 |
| | LDP | Kazumi Matsumoto [ja] | 83,899 | 41.58 | 2.80 |
| | JCP | Takao Watanabe | 16,481 | 8.17 | 7.07 |
| | Independent | Shinichiro Miyaoka | 4,485 | 2.22 | New |
| Majority | Majority | Majority | 13,016 | 6.45 | |
| Registered electors | Registered electors | Registered electors | 382,440 | | |
| Turnout | Turnout | Turnout | | 55.61 | 3.49 |
| | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP |

### 2000

2000 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Kazuna Matsumoto [ja] (Incumbent) | 81,252 | 38.78 | 2.40 |
| | Democratic | Akira Uchiyama | 62,292 | 29.73 | New |
| | JCP | Nanae Senoo | 31,930 | 15.24 | 1.85 |
| | Social Democratic | Torao Kitakado | 24,432 | 11.66 | New |
| | Liberal League | Kazuo Misumi | 9,637 | 4.59 | 3.07 |
| Majority | Majority | Majority | 18,960 | 9.05 | |
| Registered electors | Registered electors | Registered electors | 373,320 | | |
| Turnout | Turnout | Turnout | | 59.10 | |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 1996

1996 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Kazuna Matsumoto [ja] | 71,306 | 36.38 | New |
| | New Frontier | Etsuro Miyamoto | 53,484 | 27.29 | New |
| | Democratic | Kazuko Yuasa | 41,980 | 21.42 | New |
| | JCP | Hiroo Wakaōji | 26,242 | 13.39 | New |
| | Liberal League | Osamu Imaizumi | 2,968 | 1.52 | New |
| Majority | Majority | Majority | 17,822 | 9.09 | |
| Registered electors | Registered electors | Registered electors | | | |
| Turnout | Turnout | Turnout | | | |
| | LDP win (new seat) | LDP win (new seat) | LDP win (new seat) | LDP win (new seat) |