# Tokyo 19th district

Tokyo 19th District (東京都第19区, Tokyo-to dai-jukyu-ku) is an electoral district of the Japanese House of Representatives. The district was created in 1994 as part of the move towards single-member districts, and is currently represented by Constitutional Democratic Party's Yoshinori Suematsu.

## Areas covered
### Current district

As of 16 January 2023, the areas covered by this district are as follows:
* Kodaira
* Kokubunji
* Kunitachi
As part of the 2022 redistricting, Nishitokyo was moved to the 18th district and Kunitachi was returned from the 21st district.

### Areas 2017–2022

From the second redistricting in 2017 until the third redistricting in 2022, the areas covered by this district were as follows:
* Kodaira
* Kokubunji
* Nishitokyo
As part of the 2017 redistricting, Kunitachi was moved to the 21st district.

### Areas 2002–2017

From the first redistricting in 2002 until the second redistricting in 2017, the areas covered by this district were as follows:
* Kodaira
* Kokubunji
* Kunitachi
* Nishitokyo
in 2001, Hōya and Tanashi merged to create the new city of Nishitokyo.

### Areas from before 2002

From the creation of the district in 1994, until the first redistricting in 2002, the areas covered by this district were as follows:
* Kodaira
* Kokubunji
* Kunitachi
* Tanashi
* Hōya

## Elected representatives

| Representatives | Party | Years served | Notes |
| Yoshinori Suematsu | DP | 1996-2000 | |
| Yoshinori Suematsu | DPJ | 2000-2005 | Elected to the Tokyo PR district in the 2005 general election. |
| Yohei Matsumoto | LDP | 2005-2009 | Not re-elected in the 2009 general election. |
| Yoshinori Suematsu | DPJ | 2009-2012 | Not re-elected in the 2012 general election. |
| Yohei Matsumoto | LDP | 2012-2021 | Elected to the Tokyo PR district in the 2021 general election. |
| Yoshinori Suematsu | CDP | 2021- | Incumbent |

## Election results

‡ - Also ran in the Tokyo PR district
‡‡ - Also ran and won in the Tokyo PR district
2024 :
| Party | Party | Candidate |
| | Constitutional Democratic | Yoshinori Suematsu |
| | Liberal Democratic | Yohei Matsumoto |
| | Ishin | Kei'ichirō Yoshida |
| | Communist | Mitsuko Ideshige |
| Turnout | Turnout | Turnout |
2021 :
| Party | Party | Candidate | Votes | % | ±% |
| | Constitutional Democratic | Yoshinori Suematsu$^‡$ (incumbent - Tokyo PR) | 111,267 | 43.0 | 4.3 |
| | Liberal Democratic | Yohei Matsumoto$^{‡‡}$ (incumbent) (endorsed by Komeito) | 109,131 | 42.2 | 1.1 |
| | Ishin | Hideaki Yamazaki$^‡$ | 38,182 | 14.8 | New |
| Registered electors | Registered electors | Registered electors | 439,147 | | |
| Turnout | Turnout | Turnout | 263,488 | 60.0 | 4.2 |
| | Constitutional Democratic gain from Liberal Democratic | Constitutional Democratic gain from Liberal Democratic | Swing | 2.2 | |
2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic | Yohei Matsumoto$^‡$ (incumbent) (endorsed by Komeito) | 96,229 | 41.1 | 0.1 |
| | Constitutional Democratic | Yoshinori Suematsu$^{‡‡}$ | 90,540 | 38.7 | New |
| | Kibō no Tō | Rika Sasaki$^‡$ | 29,743 | 12.7 | New |
| | Communist | Shigeo Sugishita | 17,377 | 7.4 | 6.6 |
| Registered electors | Registered electors | Registered electors | 425,966 | | |
| Turnout | Turnout | Turnout | 237,859 | 55.8 | 1.6 |
| | Liberal Democratic hold | Liberal Democratic hold | Swing | 3.4 | |
2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic | Yohei Matsumoto$^‡$ | 107,608 | 41.0 | 6.6 |
| | Democratic | Yoshinori Suematsu$^‡$ (endorsed by the JIP) | 87,584 | 33.3 | 5.7 |
| | Communist | Tamishi Koizumi | 36,878 | 14.0 | 5.6 |
| | Japanese Kokoro | Hiroshi Yamada$^‡$ | 30,658 | 11.7 | New |
| Registered electors | Registered electors | Registered electors | 470,785 | | |
| Turnout | Turnout | Turnout | 270,278 | 57.4 | 7.8 |
| | Liberal Democratic hold | Liberal Democratic hold | Swing | 3.5 | |
2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic | Yohei Matsumoto$^‡$ | 101,362 | 34.4 | 0.3 |
| | Democratic | Yoshinori Suematsu$^‡$ (incumbent) (endorsed by the PNP) | 81,490 | 27.6 | 27.4 |
| | Restoration | Hiroshi Yamada$^{‡‡}$ (endorsed by Your Party) | 64,857 | 22.0 | New |
| | Communist | Mitsuko Ide | 24,660 | 8.4 | 0.6 |
| | Tomorrow | Koichiro Watanabe$^‡$ (incumbent - Tokyo PR) (endorsed by the NDP) | 22,445 | 7.6 | New |
| Registered electors | Registered electors | Registered electors | 466,796 | | |
| Turnout | Turnout | Turnout | 304,444 | 65.2 | 2.9 |
| | Liberal Democratic gain from Democratic | Liberal Democratic gain from Democratic | Swing | 6.3 | |
2009 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Yoshinori Suematsu$^‡$ (incumbent - Tokyo PR) | 170,437 | 55.0 | 10.1 |
| | Liberal Democratic | Yohei Matsumoto$^‡$ (incumbent) | 105,721 | 34.1 | 12.2 |
| | Communist | Akio Shimizu | 27,860 | 9.0 | 0.3 |
| | Independent | Saeko Takahashi | 2,912 | 0.9 | New |
| | Happiness Realization | Shinichiro Ishida | 2,740 | 0.9 | New |
| Registered electors | Registered electors | Registered electors | 462,375 | | |
| Turnout | Turnout | Turnout | 314,924 | 68.1 | 0.2 |
| | Democratic gain from Liberal Democratic | Democratic gain from Liberal Democratic | Swing | 9.3 | |
2005 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic | Yohei Matsumoto$^‡$ | 138,596 | 46.3 | 11.9 |
| | Democratic | Yoshinori Suematsu$^{‡‡}$ (incumbent) | 133,180 | 44.5 | 8.4 |
| | Communist | Akio Shimizu | 27,811 | 9.3 | 0.4 |
| Registered electors | Registered electors | Registered electors | 449,209 | | |
| Turnout | Turnout | Turnout | 304,788 | 67.9 | 8.0 |
| | Liberal Democratic gain from Democratic | Liberal Democratic gain from Democratic | Swing | 9.2 | |
2003 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Yoshinori Suematsu$^‡$ (incumbent) | 136,082 | 52.9 | 7.5 |
| | Liberal Democratic | Yohei Matsumoto$^‡$ | 88,501 | 34.4 | 6.5 |
| | Communist | Tomoaki Fujioka | 22,921 | 8.9 | 5.6 |
| | Social Democratic | Shozo Yokota$^‡$ | 9,529 | 3.7 | New |
| Registered electors | Registered electors | Registered electors | 441,891 | | |
| Turnout | Turnout | Turnout | 264,658 | 59.9 | 2.9 |
| | Democratic hold | Democratic hold | Swing | 3.8 | |
2000 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Yoshinori Suematsu$^‡$ | 118,852 | 45.4 | New |
| | Liberal Democratic | Koji Tsukahara$^‡$ | 73,076 | 27.9 | 7.7 |
| | Communist | Toshikiyo Miyauchi | 38,040 | 14.5 | 0.5 |
| | Liberal | Koichiro Watanabe$^‡$ | 31,772 | 12.1 | New |
| Registered electors | Registered electors | Registered electors | 426,638 | | |
| Turnout | Turnout | Turnout | 267,843 | 62.8 | 4.1 |
| | Democratic gain from Democratic | Democratic gain from Democratic | Swing | N/A | |
1996 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Yoshinori Suematsu$^‡$ | 76,599 | 32.5 | New |
| | New Frontier | Koichiro Watanabe (incumbent - former Tokyo 7th district) | 54,641 | 23.2 | New |
| | Liberal Democratic | Tetsuo Kaneko$^‡$ | 47,675 | 20.2 | New |
| | Communist | Atsuro Asakura | 33,075 | 14.0 | New |
| | Social Democratic | Hiroshi Tsunematsu$^‡$ | 21,557 | 9.2 | New |
| | Liberal League | Taro Ito$^‡$ | 1,998 | 0.9 | New |
| Registered electors | Registered electors | Registered electors | 409,680 | | |
| Turnout | Turnout | Turnout | 240,277 | 58.7 | New |
| | Democratic win (new seat) | Democratic win (new seat) | Democratic win (new seat) | Democratic win (new seat) | Democratic win (new seat) |