# Saitama 1st district

Saitama 1st district (埼玉県第1区, Saitama-ken dai-ikku or simply 埼玉1区, Saitama-ken ikku ) is a single-member constituency of the House of Representatives in the national Diet of Japan located in Saitama Prefecture.

## Areas covered
### since 2022

* Saitama City
** Midori-ku
** Minuma
** Urawa-ku

### 2017 - 2022

* Saitama City
** Midori-ku
** Part of Minuma-ku
** Urawa-ku
** Iwatsuki-ku

### 2013 - 2017

* Saitama City
** Midori-ku
** Minuma-ku
** Urawa-ku
** Iwatsuki-ku

### 2003 - 2013

* Saitama City
** Midori-ku
** Minuma-ku
** Urawa-ku
* Iwatsuki

### 2002 - 2003

* Part of Saitama City
* Iwatsuki

### 1994 - 2002

* Urawa
* Warabi

## List of representatives

| Election | Representative | Party |
| 1996 | Hikaru Matsunaga | Liberal Democratic |
| 2000 | Koichi Takemasa | Democratic |
| 2003 | Koichi Takemasa | Democratic |
| 2005 | Koichi Takemasa | Democratic |
| 2009 | Koichi Takemasa | Democratic |
| 2012 | Hideki Murai | Liberal Democratic |
| 2014 | Hideki Murai | Liberal Democratic |
| 2017 | Hideki Murai | Liberal Democratic |
| 2021 | Hideki Murai | Liberal Democratic |

## Election results
### 2021

2021 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic (endorsed by Komeito) | Hideki Murai (incumbent) | 120,856 | 47.58 | |
| | CDP | Koichi Takemasa | 96,690 | 38.07 | New |
| | Innovation | Gosuke Yoshimura | 23,670 | 9.32 | |
| | Independent | Manami Sato | 11,540 | 4.54 | New |
| | Independent | Tokuji Nakajima | 1,234 | 0.49 | New |
| Majority | Majority | Majority | 24,166 | 9.51 | |
| Registered electors | Registered electors | Registered electors | 465,306 | | |
| Turnout | Turnout | Turnout | | 55.48 | 3.63 |
| | Liberal Democratic hold | Liberal Democratic hold | Liberal Democratic hold | Liberal Democratic hold |

### 2017

2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic (endorsed by Komeito) | Hideki Murai (incumbent) | 106,699 | 46.88 | |
| | Kibō no Tō | Koichi Takemasa (PR seat incumbent) | 75,716 | 33.27 | New |
| | Communist | Megumi Toba | 33,593 | 14.76 | |
| | Innovation | Kiyoto Kohiyama | 11,577 | 5.09 | New |
| Majority | Majority | Majority | 30,983 | 13.61 | |
| Registered electors | Registered electors | Registered electors | 449,270 | | |
| Turnout | Turnout | Turnout | | 51.85 | 1.38 |
| | Liberal Democratic hold | Liberal Democratic hold | Liberal Democratic hold | Liberal Democratic hold |

### 2014

2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic (endorsed by Komeito) | Hideki Murai (incumbent) | 105,760 | 46.93 | |
| | Democratic | Koichi Takemasa (PR seat incumbent) (won PR seat) | 82,857 | 36.77 | |
| | Communist | Toshio Matsumura | 28,259 | 12.54 | |
| | Social Democratic | Sho Matsumoto | 8,492 | 3.77 | |
| Majority | Majority | Majority | 22,903 | 10.16 | |
| Registered electors | Registered electors | Registered electors | 435,352 | | |
| Turnout | Turnout | Turnout | | 53.23 | 4.90 |
| | Liberal Democratic hold | Liberal Democratic hold | Liberal Democratic hold | Liberal Democratic hold |

### 2012

2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic (endorsed by Komeito) | Hideki Murai | 96,242 | 39.74 | |
| | Democratic (endorsed by PNP) | Koichi Takemasa (incumbent) (won PR seat) | 76,583 | 31.62 | |
| | Your (endorsed by JRP) | Takayoshi Hiiro | 42,451 | 17.53 | New |
| | Communist | Shinji Aoyagi | 18,503 | 7.64 | |
| | Social Democratic | Yasumasa Kawakami | 8,396 | 3.47 | N/A |
| Majority | Majority | Majority | 19,659 | 8.12 | |
| Registered electors | Registered electors | Registered electors | 428,119 | | |
| Turnout | Turnout | Turnout | | 58.13 | 7.18 |
| | Liberal Democratic gain from Democratic | Liberal Democratic gain from Democratic | Liberal Democratic gain from Democratic | Liberal Democratic gain from Democratic | Liberal Democratic gain from Democratic |

### 2009

2009 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Koichi Takemasa (incumbent) | 163,973 | 60.91 | |
| | Liberal Democratic (endorsed by Komeito) | Zenjiro Kaneko (PR seat incumbent) | 77,988 | 28.97 | |
| | Communist | Gaku Ito | 23,623 | 8.78 | |
| | Happiness Realization | Hirotada Utsumi | 3,615 | 1.34 | New |
| Majority | Majority | Majority | 85,985 | 31.94 | |
| Registered electors | Registered electors | Registered electors | 419,401 | | |
| Turnout | Turnout | Turnout | | 65.31 | 0.02 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2005

2005 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Koichi Takemasa (incumbent) | 115,262 | 44.20 | |
| | Liberal Democratic | Zenjiro Kaneko (won PR seat) | 112,340 | 43.08 | N/A |
| | Communist | Gaku Ito | 19,319 | 7.41 | |
| | Social Democratic | Masayo Ikeda | 13,869 | 5.32 | |
| Majority | Majority | Majority | 2,922 | 1.12 | |
| Registered electors | Registered electors | Registered electors | 405,970 | | |
| Turnout | Turnout | Turnout | | 65.29 | 11.73 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2003

2003 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Koichi Takemasa (incumbent) | 117,587 | 56.27 | |
| | New Conservative | Zenjiro Kaneko (PR seat incumbent) | 59,910 | 28.67 | New |
| | Communist | Gaku Ito | 16,257 | 7.78 | |
| | Social Democratic | Takeo Amatatsu | 8,960 | 4.29 | |
| | Party for New Deal | Setsuo Yamaguchi | 6,237 | 2.98 | New |
| Majority | Majority | Majority | 57,677 | 27.60 | |
| Turnout | Turnout | Turnout | | 53.56 | 4.61 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2000

2000 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Koichi Takemasa | 105,783 | 42.65 | New |
| | Liberal Democratic | Hikaru Matsunaga (incumbent) | 87,358 | 35.22 | |
| | Communist | Ryoji Yoshino | 34,973 | 14.10 | |
| | Social Democratic | Takeo Amatatsu | 19,887 | 8.02 | New |
| Majority | Majority | Majority | 18,425 | 7.43 | |
| Turnout | Turnout | Turnout | | 58.17 | 3.77 |
| | Democratic gain from Liberal Democratic | Democratic gain from Liberal Democratic | Democratic gain from Liberal Democratic | Democratic gain from Liberal Democratic | Democratic gain from Liberal Democratic |

### 1996

1996 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic | Hikaru Matsunaga | 85,109 | 38.96 | New |
| | New Frontier | Takujiro Hamada [ja] | 79,930 | 36.59 | New |
| | Communist | Renzo Togashi [ja] | 46,243 | 21.17 | New |
| | Liberal League | Satoshi Nakagōri | 7,177 | 3.29 | New |
| Majority | Majority | Majority | 5,179 | 2.37 | |
| Turnout | Turnout | Turnout | | 54.40 | |
| | Liberal Democratic win (new seat) | Liberal Democratic win (new seat) | Liberal Democratic win (new seat) | Liberal Democratic win (new seat) |