# Chiba 3rd district

Chiba 3rd district (千葉県第3区, Chiba-ken dai-sanku or simply 千葉3区, Chiba-sanku) is a single-member constituency of the House of Representatives in the national Diet of Japan located in Chiba Prefecture.

## Areas covered
### Since 2002

* Part of Chiba city
** Midori-ku
* Ichihara

### 1994 - 2002

* Part of Chiba city
** Midori-ku
** Wakaba-ku
* Ichihara

## List of representatives

| Election | Representative | Party |
| 1996 | Masayuki Okajima [ja] | New Frontier |
| 1996 | Masayuki Okajima [ja] | Liberal |
| 1996 | Masayuki Okajima [ja] | New Conservative |
| 2000 | Hirokazu Matsuno | LDP |
| 2003 | Kazumasa Okajima [ja] | Democratic |
| 2005 | Hirokazu Matsuno | LDP |
| 2009 | Kazumasa Okajima [ja] | Democratic |
| 2009 | Kazumasa Okajima [ja] | PLF |
| 2009 | Kazumasa Okajima [ja] | Tomorrow |
| 2012 | Hirokazu Matsuno | LDP |
| 2014 | Hirokazu Matsuno | LDP |
| 2017 | Hirokazu Matsuno | LDP |
| 2021 | Hirokazu Matsuno | LDP |
| 2024 | Hirokazu Matsuno | LDP |

## Election Results
### 2024

2024 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Hirokazu Matsuno (Incumbent) | 67,308 | 41.17 | 20.70 |
| | CDP | Kazumasa Okajima [ja] (Won PR seat) | 64,169 | 39.25 | 1.12 |
| | Independent | Yūya Ōsuki | 22,717 | 13.89 | New |
| | JCP | Kazuo Kato | 9,297 | 5.69 | N/A |
| Majority | Majority | Majority | 3,139 | 1.92 | |
| Registered electors | Registered electors | Registered electors | 332,979 | | |
| Turnout | Turnout | Turnout | | 50.76 | 1.60 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2021

2021 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Hirokazu Matsuno (Incumbent) | 106,500 | 61.87 | 8.60 |
| | CDP | Kazumasa Okajima [ja] | 65,627 | 38.13 | New |
| Majority | Majority | Majority | 40,873 | 23.74 | |
| Registered electors | Registered electors | Registered electors | 336,241 | | |
| Turnout | Turnout | Turnout | | 52.36 | 3.76 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2017

2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Hirokazu Matsuno (Incumbent) | 85,461 | 53.27 | 0.10 |
| | CDP | Kazumasa Okajima [ja] (Won PR seat) | 52,018 | 32.42 | New |
| | Kibō no Tō | Mari Kushibuchi | 22,962 | 14.31 | New |
| Majority | Majority | Majority | 33,443 | 20.85 | |
| Registered electors | Registered electors | Registered electors | 336,797 | | |
| Turnout | Turnout | Turnout | | 48.60 | 1.71 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2014

2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Hirokazu Matsuno (Incumbent) | 85,277 | 53.37 | 9.13 |
| | People's Life | Kazumasa Okajima [ja] | 30,238 | 18.92 | New |
| | Democratic | Asuka Aoyama | 29,656 | 18.56 | 2.68 |
| | JCP | Yohei Kabasawa | 14,611 | 9.15 | 4.05 |
| Majority | Majority | Majority | 55,039 | 34.45 | |
| Registered electors | Registered electors | Registered electors | 327,236 | | |
| Turnout | Turnout | Turnout | | 50.31 | 7.45 |
| | LDP hold | LDP hold | LDP hold | LDP hold |

### 2012

2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Hirokazu Matsuno | 80,710 | 44.24 | 1.78 |
| | Tomorrow | Kazumasa Okajima [ja] (Incumbent) | 31,161 | 17.08 | New |
| | Restoration | Takashi Kobayashi | 30,565 | 16.75 | New |
| | Democratic | Asuka Aoyama | 28,979 | 15.88 | 39.58 |
| | JCP | Tadashi Ishikawa | 9,298 | 5.10 | N/A |
| | Independent | Yukiko Inoue | 1,723 | 0.95 | New |
| Majority | Majority | Majority | 49,549 | 27.16 | |
| Registered electors | Registered electors | Registered electors | 325,289 | | |
| Turnout | Turnout | Turnout | | 57.76 | 6.81 |
| | 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 | Kazumasa Okajima [ja] | 112,035 | 55.46 | 13.57 |
| | LDP | Hirokazu Matsuno (Incumbent) (Won PR seat) | 85,777 | 42.46 | 10.78 |
| | Happiness Realization | Yūzō Furukawa | 4,210 | 2.08 | New |
| Majority | Majority | Majority | 26,258 | 13.00 | |
| Registered electors | Registered electors | Registered electors | 320,113 | | |
| Turnout | Turnout | Turnout | | 64.57 | 2.29 |
| | 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 | Hirokazu Matsuno | 108,937 | 53.24 | 5.94 |
| | Democratic | Kazumasa Okajima [ja] (Incumbent) | 85,707 | 41.89 | 5.92 |
| | JCP | Mitsumasa Konno | 9,957 | 4.87 | 0.02 |
| Majority | Majority | Majority | 23,230 | 11.35 | |
| Registered electors | Registered electors | Registered electors | 310,927 | | |
| Turnout | Turnout | Turnout | | 66.86 | 6.93 |
| | 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 | Kazumasa Okajima [ja] | 85,610 | 47.81 | 25.77 |
| | LDP | Hirokazu Matsuno (Incumbent) (Won PR seat) | 84,693 | 47.30 | 8.29 |
| | JCP | Mitsumasa Konno | 8,768 | 4.89 | 6.26 |
| Majority | Majority | Majority | 917 | 0.51 | |
| Registered electors | Registered electors | Registered electors | 305,727 | | |
| Turnout | Turnout | Turnout | | 59.93 | 0.61 |
| | 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 | Hirokazu Matsuno | 95,311 | 39.01 | 4.56 |
| | New Conservative | Masayuki Okajima [ja] (Incumbent) | 64,182 | 26.27 | New |
| | Democratic | Keiji Takeuchi | 53,862 | 22.04 | New |
| | JCP | Yasuyo Kurosu | 27,248 | 11.15 | 3.28 |
| | Liberal League | Seigō Fujino | 3,725 | 1.53 | 0.69 |
| Majority | Majority | Majority | 31,129 | 12.74 | |
| Registered electors | Registered electors | Registered electors | 414,880 | | |
| Turnout | Turnout | Turnout | | 60.54 | |
| | LDP gain from New Conservative | LDP gain from New Conservative | LDP gain from New Conservative | LDP gain from New Conservative | LDP gain from New Conservative |

### 1996

1996 :
| Party | Party | Candidate | Votes | % | ±% |
| | New Frontier | Masayuki Okajima [ja] | 84,846 | 39.90 | New |
| | LDP | Hirokazu Matsuno | 73,254 | 34.45 | New |
| | JCP | Michiko Chiba | 30,691 | 14.43 | New |
| | Democratic | Keiji Takeuchi | 22,068 | 10.38 | New |
| | Liberal League | Mitsumoto Higashi | 1,765 | 0.84 | New |
| Majority | Majority | Majority | 11,592 | 5.45 | |
| 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) |