# Tokyo 22nd district

Tokyo 22nd District (東京都第22区, Tokyo-to dai-junini-ku, or 東京22区, Tokyo nijuni-ku) is an electoral district of the Japanese House of Representatives located in Western Tokyo. The district was created in 1994 as part of the move to single-member constituencies.

## Areas covered
### Current district

As of 13 January 2023, the areas covered by this district are as follows:
* Mitaka
* Chōfu
* Komae
As part of the 2022 reapportionments, the remaining sections of Inagi were given to the new 30th 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:
* Mitaka
* Chōfu
* Komae
* Parts of Inagi
** Yanoguchi, Higashi Naganuma, Daimura, Hyakumura, Oshidate, Koyodai 1-6
As part of the 2017 redistricting, parts of Inagi city were transferred 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:
* Mitaka
* Chōfu
* Komae
* Inagi
As part of the 2002 redistricting, Fuchū was moved to the 18th district and Mitaka was gained from that same district.

### Areas from before 2002

From the founding of this district in 1994 until the first redistricting in 2002, the areas covered by this district were as follows:
* Fuchu
* Chōfu
* Komae
* Inagi

## Elected representatives

| Representative | Party | Years served | Notes |
| Tatsuya Ito | NFP | 1996 – 2000 | Joined the LDP and won a seat in the Tokyo PR district |
| Ikuo Yamahana | DPJ | 2000 – 2005 | Lost re-election in the 2005 general election |
| Tatsuya Ito | LDP | 2005 – 2009 | Lost re-election in the 2009 general election |
| Ikuo Yamahana | DPJ | 2009 – 2012 | Lost re-election in the 2012 general election. Won election to the Tokyo PR district in the 2017 general election. |
| Tatsuya Ito | LDP | 2012 – 2024 | |
| Ikuo Yamahana | CDP | 2024 – | |

## Election results

‡ - Also ran for the Tokyo PR district
‡‡ - Also ran for and was elected to the Tokyo PR district
2024 :
| Party | Party | Candidate | Votes | % | ±% |
| | CDP | Ikuo Yamahana$^‡$ | 99,790 | 40.2 | 0.1 |
| | LDP | Tatsuya Ito$^{‡‡}$ (won seat in PR) | 96,748 | 39.0 | 7.6 |
| | Sanseitō | Mika Suzuki | 26,005 | 10.5 | |
| | JCP | Yoshitaka Hirano | 25,453 | 10.2 | |
| Registered electors | Registered electors | Registered electors | 428,356 | | |
| Turnout | Turnout | Turnout | | 59.61 | 0.40 |
| | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP | CDP gain from LDP |
2021 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Tatsuya Ito$^‡$ (incumbent) (endorsed by Komeito) | 131,351 | 46.9 | 3.5 |
| | CDP | Ikuo Yamahana$^‡$ (incumbent - Tokyo PR) | 112,393 | 40.1 | 4.3 |
| | Reiwa | Mari Kushibuchi$^‡$ | 31,981 | 11.4 | New |
| | Anti-NHK | Youhei Hasegawa | 4,535 | 1.6 | New |
| Registered electors | Registered electors | Registered electors | 478,721 | | |
| Turnout | Turnout | Turnout | 287,281 | 60.0 | 4.3 |
| | LDP hold | LDP hold | Swing | 3.1 | |
2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Tatsuya Ito$^‡$ (incumbent) (endorsed by Komeito) | 110,493 | 43.4 | 2.6 |
| | CDP | Ikuo Yamahana$^{‡‡}$ | 91,073 | 35.8 | New |
| | Kibō no Tō | Emi Kanegasaki$^‡$ | 30,236 | 11.9 | New |
| | JCP | Makoto Abe | 22,859 | 9.0 | 5.6 |
| Registered electors | Registered electors | Registered electors | 465,616 | | |
| Turnout | Turnout | Turnout | 259,488 | 55.7 | 0.4 |
| | LDP hold | LDP hold | Swing | 4.3 | |
2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Tatsuya Ito$^‡$ (incumbent) (endorsed by Komeito) | 116,757 | 46.0 | 6.0 |
| | Democratic | Ikuo Yamahana$^‡$ | 80,014 | 31.5 | 8.5 |
| | JCP | Jun Sakauchi | 36,980 | 14.6 | 5.7 |
| | Japanese Kokoro | Akira Shikano$^‡$ | 20,288 | 8.0 | New |
| Registered electors | Registered electors | Registered electors | 466,679 | | |
| Turnout | Turnout | Turnout | 261,857 | 56.1 | 8.3 |
| | LDP hold | LDP hold | Swing | 3.4 | |
2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Tatsuya Ito$^‡$ (endorsed by Komeito) | 115,290 | 40.0 | 1.7 |
| | Democratic | Ikuo Yamahana$^‡$ (incumbent) (endorsed by the PNP) | 66,210 | 23.0 | 27.6 |
| | Restoration | Akira Shikano$^‡$ | 40,698 | 14.1 | New |
| | Your | Ken Tsuyama$^‡$ | 37,805 | 13.1 | New |
| | JCP | Jun Sakauchi | 25,740 | 8.9 | 0.4 |
| | Happiness Realization | Yoshihiro Ihara | 2,180 | 0.8 | New |
| Registered electors | Registered electors | Registered electors | 462,725 | | |
| Turnout | Turnout | Turnout | 298,180 | 64.4 | 3.5 |
| | LDP gain from Democratic | LDP gain from Democratic | Swing | 7.8 | |
2009 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Ikuo Yamahana$^‡$ | 154,904 | 50.6 | 13.4 |
| | LDP | Tatsuya Ito$^‡$ (incumbent) (endorsed by Komeito) | 117,315 | 38.3 | 13.8 |
| | JCP | Masafumi Yoshioka | 28,556 | 9.3 | 0.5 |
| | Happiness Realization | Ken Tsuyama$^‡$ | 5,501 | 1.8 | New |
| Registered electors | Registered electors | Registered electors | 459,207 | | |
| Turnout | Turnout | Turnout | 311,893 | 67.9 | 1.6 |
| | Democratic gain from LDP | Democratic gain from LDP | Swing | 11.1 | |
2005 :
| Party | Party | Candidate | Votes | % | ±% |
| | LDP | Tatsuya Ito$^‡$ (incumbent - Tokyo PR) | 150,404 | 52.1 | 8.6 |
| | Democratic | Ikuo Yamahana$^‡$ (incumbent) | 107,417 | 37.2 | 8.7 |
| | JCP | Yoshiharu Wakabayashi$^‡$ | 28,356 | 9.8 | 0.2 |
| | Independent | Manyo Yamashita | 2,483 | 0.9 | New |
| Registered electors | Registered electors | Registered electors | 442,182 | | |
| Turnout | Turnout | Turnout | 293,299 | 66.3 | 7.4 |
| | LDP gain from Democratic | LDP gain from Democratic | Swing | 11.1 | |
2003 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Ikuo Yamahana$^‡$(incumbent) | 113,931 | 45.9 | 6.0 |
| | LDP | Tatsuya Ito$^{‡‡}$ | 105,385 | 42.5 | 13.5 |
| | JCP | Yoshiharu Wakabayashi$^‡$ | 24,859 | 10.0 | 4.3 |
| | Independent | Moritaka Sato | 4,001 | 1.6 | New |
| Registered electors | Registered electors | Registered electors | 432,492 | | |
| Turnout | Turnout | Turnout | 254,695 | 58.9 | 2.0 |
| | LDP hold | LDP hold | Swing | 8.9 | |
2000 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Ikuo Yamahana$^‡$ | 104,132 | 38.9 | 11.8 |
| | LDP | Yuji Shindo$^‡$ | 77,761 | 29.0 | 7.9 |
| | Liberal | Morio Suzuki$^‡$ | 39,503 | 14.7 | New |
| | JCP | Takao Okada | 38,318 | 14.3 | 0.9 |
| | Independent | Matsumi Sakai | 5,635 | 2.1 | New |
| | Liberal League | Koji Tomono | 2,687 | 1.0 | New |
| Registered electors | Registered electors | Registered electors | 456,184 | | |
| Turnout | Turnout | Turnout | 277,634 | 60.9 | 5.6 |
| | Democratic gain from LDP | Democratic gain from LDP | Swing | N/A | |
1996 :
| Party | Party | Candidate | Votes | % | ±% |
| | New Frontier | Tatsuya Ito (incumbent - former Tokyo 11th district) | 69,707 | 29.6 | New |
| | Democratic | Sadao Yamahana$^{‡‡}$ (incumbent - former Tokyo 11th district) | 63,974 | 27.1 | New |
| | LDP | Yuji Shindo$^‡$ | 49,837 | 21.1 | New |
| | JCP | Yoshiko Matsuda | 35,762 | 15.2 | New |
| | Social Democratic | Nobuto Hosaka$^{‡‡}$ | 13,904 | 5.9 | New |
| | New Socialist | Kazumoto Sato | 2,526 | 1.1 | New |
| Registered electors | Registered electors | Registered electors | 436,597 | | |
| Turnout | Turnout | Turnout | 241,613 | 55.3 | N/A |
| | LDP gain from Democratic | LDP gain from Democratic | Swing | N/A | |