# Tokyo 9th district

Tokyo's 9th district is a single-member constituency of the House of Representatives, the lower house of the national Diet of Japan. It covers the western half of Nerima ward in North Tokyo.
The district was won by the Constitutional Democratic Party in the 2021 Japanese general election. The previous incumbent, former economy minister Isshu Sugawara, resigned in 2021 after being found guilty of breaking election law. Sugawara was furthermore barred from running for office for 3 years.

## List of Representatives

| Election | Representative | Party |
| 1996 | Koichi Yoshida [ja] | New Frontier |
| 1996 | Koichi Yoshida [ja] | Sun |
| 1996 | Koichi Yoshida [ja] | Good Governance |
| 2000 | Koichi Yoshida [ja] | Democratic |
| 2003 | Isshu Sugawara | Liberal Democratic |
| 2005 | Isshu Sugawara | Liberal Democratic |
| 2009 | Takatane Kiuchi [ja] | Democratic |
| 2009 | Takatane Kiuchi [ja] | Independent |
| 2009 | Takatane Kiuchi [ja] | People's Life First |
| 2009 | Takatane Kiuchi [ja] | Tomorrow |
| 2012 | Isshu Sugawara | Liberal Democratic |
| 2014 | Isshu Sugawara | Liberal Democratic |
| 2017 | Isshu Sugawara | Liberal Democratic |
| 2017 | Isshu Sugawara | Independent |
| Vacant (June 2021 - October 2021) |||||
| 2021 | Issei Yamagishi [ja] | CDP |

## Election results

2024 :
| Party | Party | Candidate | Votes | % | ±% |
| | CDP | Issei Yamagishi [ja] | 75,474 | 44.1 | 3.2 |
| | Independent (endorsed by Komeito and LDP) | Isshu Sugawara | 64,798 | 37.9 | |
| | Innovation | Shigeta Ookōchi | 23,488 | 13,7 | 4.2 |
| | The Collaborative Party | Ayaka Otsu | 7,245 | 4.2 | |
| Registered electors | Registered electors | Registered electors | 307,404 | | |
| Turnout | Turnout | Turnout | | 57.93 | 0.22 |
| | CDP hold | CDP hold | CDP hold | CDP hold |
2021 :
| Party | Party | Candidate | Votes | % | ±% |
| | CDP (endorsed by SDP) | Issei Yamagishi [ja] | 109,489 | 40.90 | New |
| | Liberal Democratic (endorsed by Komeito) | Takao Ando [ja] (PR seat incumbent) | 95,284 | 35.59 | |
| | Innovation | Jun Minami | 47,842 | 17.87 | New |
| | Yamato Party | Kōki Kobayashi | 15,091 | 5.64 | New |
| Majority | Majority | Majority | 14,205 | 5.31 | |
| Registered electors | Registered electors | Registered electors | 478,743 | | |
| Turnout | Turnout | Turnout | | 57.71 | 3.03 |
| | CDP gain from Independent | CDP gain from Independent | CDP gain from Independent | CDP gain from Independent | CDP gain from Independent |
2017 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic (endorsed by Komeito) | Isshu Sugawara (incumbent) | 122,279 | 49.17 | |
| | Kibō no Tō | Satoshi Takamatsu | 64,731 | 26.03 | New |
| | Communist | Junko Hara | 57,439 | 23.10 | |
| | Independent | Yoshinari Maeda | 4,243 | 1.71 | New |
| Majority | Majority | Majority | 57,548 | 23.14 | |
| Registered electors | Registered electors | Registered electors | 468,623 | | |
| Turnout | Turnout | Turnout | | 54.68 | 0.11 |
| | LDP hold | LDP hold | LDP hold | LDP hold |
2014 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic (endorsed by Komeito) | Isshu Sugawara (incumbent) | 123,368 | 51.40 | |
| | Innovation (endorsed by DPJ, PLP) | Takatane Kiuchi [ja] (won PR seat) | 65,809 | 27.42 | New |
| | Communist | Junko Hara | 50,861 | 21.19 | |
| Majority | Majority | Majority | 57,559 | 23.98 | |
| Registered electors | Registered electors | Registered electors | 452,092 | | |
| Turnout | Turnout | Turnout | | 54.79 | 8.67 |
| | LDP hold | LDP hold | LDP hold | LDP hold |
2012 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic (endorsed by Komeito) | Isshu Sugawara (PR seat incumbent) | 145,013 | 53.49 | |
| | Tomorrow (endorsed by Daichi) | Takatane Kiuchi [ja] (incumbent) | 55,736 | 20.56 | New |
| | Democratic (endorsed by PNP) | Takashi Fukumura | 45,386 | 16.74 | |
| | Communist | Masayuki Sakajiri | 24,976 | 9.21 | |
| Majority | Majority | Majority | 89,277 | 32.93 | |
| Registered electors | Registered electors | Registered electors | 448,660 | | |
| Turnout | Turnout | Turnout | | 63.46 | 4.42 |
| | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow | LDP gain from Tomorrow |
2009 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic (endorsed by PNP) | Takatane Kiuchi [ja] | 140,109 | 47.24 | |
| | Liberal Democratic (endorsed by Komeito) | Isshu Sugawara (incumbent) (won PR seat) | 126,026 | 42.49 | |
| | Communist | Yoshinobu Kishi | 26,796 | 9.04 | |
| | Happiness Realization | Tadahiro Okihara | 3,644 | 1.23 | New |
| Majority | Majority | Majority | 14,083 | 4.75 | |
| Registered electors | Registered electors | Registered electors | 444,929 | | |
| Turnout | Turnout | Turnout | | 67.88 | 0.40 |
| | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP | Democratic gain from LDP |
2005 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic | Isshu Sugawara (incumbent) | 153,309 | 53.86 | |
| | Democratic | Tomotaro Kawashima [ja] | 87,890 | 30.88 | |
| | Communist | Yasuko Mochizuki | 28,493 | 10.01 | |
| | Social Democratic | Naoto Nakagawa | 14,952 | 5.25 | |
| Majority | Majority | Majority | 65,419 | 22.98 | |
| Registered electors | Registered electors | Registered electors | 429,691 | | |
| Turnout | Turnout | Turnout | | 67.48 | 7.78 |
| | LDP hold | LDP hold | LDP hold | LDP hold |
2003 :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Democratic | Isshu Sugawara | 112,868 | 45.83 | |
| | Democratic | Koichi Yoshida [ja] (incumbent) | 96,662 | 39.25 | |
| | Communist | Yasuko Mochizuki | 27,903 | 11.33 | |
| | Social Democratic | Satoshi Murata | 8,841 | 3.59 | N/A |
| Majority | Majority | Majority | 16,206 | 6.58 | |
| Registered electors | Registered electors | Registered electors | 423,412 | | |
| Turnout | Turnout | Turnout | | 59.73 | 1.68 |
| | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic | LDP gain from Democratic |
2000 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Koichi Yoshida [ja] (incumbent) | 86,450 | 35.43 | New |
| | Liberal Democratic | Isshu Sugawara | 81,912 | 33.57 | |
| | Communist | Yasuko Mochizuki | 44,057 | 18.05 | |
| | Liberal | Tomotaro Kawashima [ja] | 31,612 | 12.95 | New |
| Majority | Majority | Majority | 4,538 | 1.86 | |
| Registered electors | Registered electors | Registered electors | 409,647 | | |
| Turnout | Turnout | Turnout | | 61.41 | 3.94 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |
1996 :
| Party | Party | Candidate | Votes | % | ±% |
| | New Frontier | Koichi Yoshida [ja] | 67,657 | 30.74 | New |
| | Democratic | Toshio Ogawa | 59,668 | 27.11 | New |
| | Liberal Democratic | Guts Ishimatsu | 43,766 | 19.89 | New |
| | Communist | Kotaro Masumura | 37,172 | 16.89 | New |
| | Social Democratic | Tomoo Bando | 11,808 | 5.37 | New |
| Majority | Majority | Majority | 7,989 | 3.63 | |
| Turnout | Turnout | Turnout | | 57.47 | |
| | New Frontier win (new seat) | New Frontier win (new seat) | New Frontier win (new seat) | New Frontier win (new seat) |