Tokyo 18th District (東京都第18区, Tōkyō-tō dai-jūhachi-ku, or 東京18区 Tōkyō jūhachi-ku) is a constituency of the House of Representatives in the Diet of Japan. It is located in Western Tokyo and consists of the cities of Musashino, Koganei and, since 2022 Nishitokyo. Musashino and Koganei have been a part of the district from its creation, but between 2002 and 2022 it also included Fuchū, and before 2002 it included Mitaka. Before the electoral reform of 1994, the area had been part of Tokyo 7th district, where four representatives were elected by Single non-transferable vote (SNTV).

Tokyo 18th District
東京都第18区
Parliamentary constituency
for the Japanese House of Representatives
Numbered map of Tokyo single-member districts
PrefectureTokyo
Proportional DistrictTokyo
Electorate444,924 (2021)[1]
Current constituency
Created1994
SeatsOne
PartyLiberal Democratic Party
RepresentativeKaoru Fukuda
Created fromTokyo's 7th "medium-sized" district
MunicipalitiesMusashino, Koganei and Nishitokyo

From its creation to 2012, the district was represented by former Prime Minister and popular Democratic Party co-founder Naoto Kan. In the election of 2005 it was the only constituency the opposition could defend in Tokyo against the landslide for Junichiro Koizumi's ruling coalition. In 2003, then party chairman Kan beat former Minister of Labour Kunio Hatoyama, the younger brother of Democratic Party leader Yukio Hatoyama by a margin of more than 50,000 votes.

In the election of 2009, Masatada Tsuchiya was the candidate for the ruling LDP.[2] Tsuchiya who failed to unseat Kan in 2005 was a representative for the Tokyo proportional representation block where he ranked second on the LDP's list 2005.[3] In 2009 he failed to secure reelection in the Tokyo block. Kan was elected president of the then ruling Democratic Party again in 2010 shortly before the 2010 House of Councillors election; but his cabinet resigned after only 15 months. In the 2012 House of Representatives election, Kan lost Tokyo 18th district to Masatada Tsuchiya by more than 10,000 votes; ranking third on the Democratic proportional list in Tokyo (sekihairitsu 87.9%), he gained the last of the three Democratic seats in the Tokyo proportional block behind Banri Kaieda and Jin Matsubara.[4]

Kan joined the Constitutional Democratic Party of Japan before the 2017 general election and regained the seat. Tsuchiya lost his seat even with his high sekihairitsu as he did not run for the proportional block. In 2021 Kan was challenged by a former DPJ lawmaker, Akihisa Nagashima, who had joined the LDP. Kan managed to hold his seat in a tight race that received national attention.[5][6]

List of representatives

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Representative Party Dates Notes
Naoto Kan DPJ 1996–2012 Re-elected in the Tokyo PR block
Masatada Tsuchiya LDP 2012–2017
Naoto Kan CDP 2017–2024
Kaoru Fukuda LDP 2024- Incumbent

Election results

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2024
Party Candidate Votes % ±%
LDP Kaoru Fukuda 99,002 42.34  2.38
CDP Reiko Matsushita (elected by PR) 96,820 41.41  5.71
Sanseitō Yukiko Tokunaga 19,496 8.34 N/A
JCP Makoto Higuchi 18,512 7.92 N/A
Majority 2,182 0.93  1.96
Turnout 233,830 60.13  1.47
LDP gain from CDP
2021[7]
Party Candidate Votes % ±%
CDP Naoto Kan 122,091 47.12  6.39
LDP Akihisa Nagashima (elected by PR) 115,881 44.72  4.43
Independent Masami Koyasu 21,151 8.16
Majority 6,210 2.40  1.96
Turnout 59.86  4.03
CDP hold Swing 0.98
2017[8]
Party Candidate Votes % ±%
CDP Naoto Kan 96,713 40.73  1.94
LDP Masatada Tsuchiya 95,667 40.29  5.50
Kibō no Tō Atsushi Tokita 45,081 18.98 N/A
Majority 1,046 0.44  6.76
Turnout 55.83  1.60
CDP gain from LDP Swing  3.72
2014[9]
Party Candidate Votes % ±%
LDP Masatada Tsuchiya 106,143 45.81  13.59
Democratic Naoto Kan (elected by PR) 89,877 38.79  10.46
JCP Ryo Yuuki 35,699 15.41  10.27
Majority 16,266 7.02  3.13
Turnout 57.43  7.59
LDP hold Swing  1.57
2012[10]
Party Candidate Votes % ±%
LDP Masatada Tsuchiya 84,078 32.22  0.09
Democratic Naoto Kan (elected by PR) 73,942 28.33  31.13
Independent Katsuhito Yokokume 44,828 17.18 N/A
Restoration Katsuya Igarashi 28,837 11.05 N/A
Tomorrow Yasuyuki Sugimura 15,873 6.08 N/A
JCP Takayoshi Yanagi 13,419 5.14  2.50
Majority 10,136 3.89  23.44
Turnout 65.02  3.22
LDP gain from Democratic Swing  15.61
2009[2]
Party Candidate Votes % ±%
Democratic Naoto Kan 163,446 59.46  12.69
LDP Masatada Tsuchiya 88,325 32.13  11.75
JCP Tamiji Koizumi 21,004 7.64  0.31
Happiness Realization Michie Tanabe 2,087 0.76  0.76
Majority 75,121 27.33  24.44
Turnout 274,862 68.24  0.20
Democratic hold Swing  12.22
 
In 2005, the ruling coalition of LDP (red) and Kōmeitō (green) swept Tokyo's single-member districts. The opposition DPJ (blue) was reduced to one district, down from 12 in 2003.
2005[11]
Party Candidate Votes % ±%
Democratic Naoto Kan 126,716 46.77
LDP Masatada Tsuchiya (elected by PR) 118,879 43.88
JCP Tōru Miyamoto 21,542 7.95
Turnout 270,949 68.04
2003[12]
Party Candidate Votes % ±%
Democratic Naoto Kan 139,195 57.36
LDP Kunio Hatoyama (elected by PR) 83,337 34.34
JCP Motonari Kobayama 16,010 6.60
Turnout 242,652 62.38
2000[13]
Party Candidate Votes % ±%
Democratic Naoto Kan 114,750
LDP Hisanori Kataoka[14] 49,740
JCP Sadahiko Toda[15] 21,900
Liberal Takashi Kanamori[16] 16,467
Liberal League Yū Kaneko[17] 1,521
1996[18]
Party Candidate Votes % ±%
Democratic Naoto Kan 116,910
New Frontier Takashi Kanamori 24,245
LDP Chikara Ōkubo[19] 23,566
JCP Sadahiko Toda 22,488

References

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  1. ^ "東京18区". go2senkyo. initial.inc. Retrieved 3 December 2021.
  2. ^ a b 衆議院 >第45回衆議院議員選挙 >東京都 >東京18区. ザ・選挙 (in Japanese). JANJAN. Archived from the original on 2009-04-28. Retrieved 2009-06-09.
  3. ^ 衆議院 >第44回衆議院議員選挙 >東京>自民. ザ・選挙 (in Japanese). JANJAN. Retrieved 2009-06-09.
  4. ^ 【比例代表】 東京(定数17). Yomiuri Shimbun (in Japanese). Retrieved 2013-03-14.
  5. ^ "Ex-PM Naoto Kan beats former subordinate in Japan general election". Mainichi Japan. 1 November 2021. Retrieved 3 December 2021.
  6. ^ "Affluent Tokyo Suburb Shows Why Japan's Opposition Can't Keep Up". Bloomberg. Retrieved 3 December 2021.
  7. ^ 開票速報 小選挙区:東京 - 2021衆議 (in Japanese). NHK. Retrieved 2 November 2021.
  8. ^ 小選挙区開票速報:東京(定数25). Asahi Shimbun (in Japanese). Retrieved 2017-11-27.
  9. ^ 小選挙区:東京 - 開票速報 - 2014総選挙: 朝日新聞デジタル. Asahi Shimbun (in Japanese). Retrieved 2017-12-07.
  10. ^ 第46回総選挙>小選挙区開票速報:東京都. Asahi Shimbun (in Japanese). Retrieved 2017-12-07.
  11. ^ 衆議院 >第44回衆議院議員選挙 >東京都 >東京18区. ザ・選挙 (in Japanese). JANJAN. Archived from the original on 2009-07-05. Retrieved 2009-06-09. {{cite web}}: External link in |work= (help)
  12. ^ 衆議院 >第43回衆議院議員選挙 >東京都 >東京18区. ザ・選挙 (in Japanese). JANJAN. Archived from the original on 2019-02-03. Retrieved 2009-06-09. {{cite web}}: External link in |work= (help)
  13. ^ 衆議院 >第42回衆議院議員選挙 >東京都 >東京18区. ザ・選挙 (in Japanese). JANJAN. Archived from the original on 2010-07-11. Retrieved 2009-06-09. {{cite web}}: External link in |work= (help)
  14. ^ 片岡 久議
  15. ^ 戸田定彦
  16. ^ 金森隆
  17. ^ 金子遊
  18. ^ 衆議院 >第41回衆議院議員選挙 >東京都 >東京18区. ザ・選挙 (in Japanese). JANJAN. Archived from the original on 2009-08-17. Retrieved 2009-06-09. {{cite web}}: External link in |work= (help)
  19. ^ 大久保力
House of Representatives (Japan)
Preceded by Constituency represented by the prime minister
2010–2011
Succeeded by