Tokyo 15th District (東京都第15区, Tokyo-to jugo-ku) is an electoral district of the Japanese House of Representatives. The district was established in 1994 as part of the change to single-member districts, and it is currently represented by Natsumi Sakai, member of the CDP.

Tokyo 15th District
東京都第15区
Parliamentary constituency
for the Japanese House of Representatives
PrefectureTokyo
Proportional BlockTokyo
Electorate427,908 (as of September 2022)[1]
Current constituency
Created1994
SeatsOne
RepresentativeNatsumi Sakai

Areas covered

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Current district

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As of 13 January 2023, the areas covered by this district are as follows:

  • Kōtō, since the creation of the district

Elected representatives

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Representative Party Years served Notes
Koji Kakizawa LDP 1996–1999 Redistricted from the former 15th district.

Resigned his seat to run in the 1999 Tokyo gubernatorial election.[2]

Ben Kimura LDP 1999–2000 Lost re-election.
Koji Kakizawa Ind. 2000–2003 Retired from politics.
Ben Kimura LDP 2003–2009 Lost re-election.
Shozo Azuma DPJ 2009–2012
PLF 2012
TPJ 2012 Lost re-election.
Mito Kakizawa Your 2012–2013
Ind. 2013
Unity 2013–2014
JIP 2014–2016 Re-elected in 2014.
DP 2016–2017
Kibō 2017 Re-elected in the Tokyo PR block.
Tsukasa Akimoto LDP 2017–2021 Resigned mid-term.
Mito Kakizawa Ind. 2021–2024 Resigned mid-term.[3]
Natsumi Sakai CDP 2024–

Election results

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‡ - Also ran in the Tokyo PR district election

‡‡ - Also ran and won in the Tokyo PR district election

2024[4]
Party Candidate Votes % ±%
CDP Natsumi Sakai 66,791 27.5  1.5
Independent Genki Sudo 65,666 27.1  9.7
LDP Kōki Oozora‡‡ 62,771 25.9
Independent Yui Kanazawa 32,442 13.4
JCP Azuma Kozutsumi 15,049 6.2
Turnout 57.58  16.88
CDP hold


The 2024 by-election in the constituency was called following the arrest and a court ruling of the former LDP state minister Mito Kakizawa,[5] who was arrested and found guilty on vote buying charges.[6][7]

The voter turnout was 40.70%, 18.03% lower than the previous election's 58.73%, marking the constituency's lowest.[8]

2024 by-election[9]
Party Candidate Votes % ±%
CDP Natsumi Sakai
(Supported by the JCP, SDP)
49,476 29.0  4.2
Independent Genki Sudo
(Endorsed by Reiwa Shinsengumi)
29,669 17.4 New
Ishin Yui Kanazawa
(Endorsed by FEFA)
28,461 16.7  2.1
CPJ Akari Iiyama 24,264 14.2 New
Independent Hirotada Ototake
(Endorsed by FnK, DPP)
19,655 11.5 New
Sanseitō Rina Yoshikawa 8,639 5.1 New
Independent Tsukasa Akimoto 8,061 4.7 New
Anti-NHK Katsuya Fukunaga 1,410 0.8 New
Tsubasa Ryosuke Nemoto 1,110 0.7 New
Registered electors 430,285
Turnout 175,126 40.7  17.0
CDP gain from Independent Swing
2021[10]
Party Candidate Votes % ±%
Independent Mito Kakizawa (incumbent - Tokyo PR)
(endorsed by the LDP)
76,251 32.0 New
CDP Masae Ido
(endorsed by the SDP)
58,978 24.8 New
Ishin Yui Kanazawa 44,882 18.8 New
Independent Hiroshi Imamura
(endorsed by the LDP)
26,628 11.2 New
Independent Takashi Ino 17,514 7.4  0.3
Japan First Makoto Sakurai 9,449 4.0 New
Independent Koji Yoshida 4,608 1.9 New
Registered electors 424,125
Turnout 249,089 58.7  3.1
Independent gain from LDP Swing
2017[11]
Party Candidate Votes % ±%
LDP Tsukasa Akimoto (incumbent - Tokyo PR)
(endorsed by Komeito)
101,155 45.6  5.6
Kibō no Tō Mito Kakizawa‡‡
(incumbent)
70,325 31.7 New
JCP Toshio Yoshida 34,943 15.7  1.1
Independent Takashi Ino 15,667 7.4  2.9
Registered electors 412,336
Turnout 229,218 55.6  0.4
LDP gain from Ishin Swing  7.3
2014[12]
Party Candidate Votes % ±%
Ishin Mito Kakizawa (incumbent)
(endorsed by the JRP)
88.507 41.3 New
LDP Tsukasa Akimoto‡‡
(incumbent - Tokyo PR)
(endorsed by Komeito)
85,714 40.0  9.0
JCP Toshio Yoshida 31,384 14.6  6.8
Independent Takashi Ino 8,759 4.1 New
Registered electors 395,474
Turnout 221,584 56.0  8.1
Ishin gain from Your Swing
2012[13]
Party Candidate Votes % ±%
Your Mito Kakizawa (incumbent - Tokyo PR)
(endorsed by the JRP)
88,222 36.9  21.2
LDP Tsukasa Akimoto‡‡
(endorsed by Komeito)
74,159 31.0  1.3
Democratic Mieko Tanaka 29,355 12.3  30.1
JCP Toshio Yoshida 18,667 7.8  1.1
Tomorrow Shozo Azuma (incumbent)
(endorsed by the NDP)
15,667 7.4 New
Registered electors 386,411
Turnout 247,496 64.1  3.2
Your gain from Democratic Swing  10.6
2009[14]
Party Candidate Votes % ±%
Democratic Shozo Azuma 105,131 42.4  7.2
LDP Ben Kimura (incumbent)
(endorsed by Komeito)
80,054 32.3  22.2
Your Mito Kakizawa‡‡ 38.808 15.7 New
JCP Toshio Yoshida 22,176 8.9  1.6
Registered electors 375,924
Turnout 229,218 67.3  0.8
Democratic gain from LDP Swing  6.7
2005[15]
Party Candidate Votes % ±%
LDP Ben Kimura (incumbent - Tokyo PR)
(endorsed by Komeito)
123,021 54.4  5.6
Democratic Shozo Azuma
(incumbent)
79,621 35.2  5.2
JCP Toshio Yoshida 23,659 10.5  0.5
Registered electors 348,023
Turnout 231,331 66.5  6.1
LDP hold Swing  6.5
2003[16]
Party Candidate Votes % ±%
LDP Ben Kimura 69,164 35.4  7.3
Democratic Shozo Azuma
(incumbent - Tokyo PR)
58,616 30.0  15.3
Independent Society Koji Kakizawa 47,843 24.5 New
JCP Haruta Atsuyuki 19,610 10.0  5.6
Registered electors 332,572
Turnout 200,707 60.4  2.1
LDP gain from Independent Swing  15.1
2000[17]
Party Candidate Votes % ±%
Independent Koji Kakizawa 54,298 28.8  5.6
LDP Ben Kimura
(incumbent)
52,892 28.1  22.9
JCP Haruta Atsuyuki 29,412 15.6  2.9
Democratic Tatsuharu Mawatari 27,654 14.7  15.8
Liberal Shozo Azuma‡‡ 22,800 12.1 New
Independent Kaoru Kondo 1,302 0.7 New
Registered electors 309,356
Turnout 193,348 62.5
Independent gain from LDP Swing N/A
1999 by-election[18]
Party Candidate Votes % ±%
LDP Ben Kimura 89,605 51.0  14.6
Democratic Kazuko Yoshida 53,490 30.5 New
JCP Muneharu Fusa 32,541 18.5  0.8
Registered electors
Turnout
LDP hold Swing  7.3
1996[19]
Party Candidate Votes % ±%
LDP Koji Kakizawa (incumbent - former Tokyo 6th) 61,701 36.4 New
New Frontier Akira Kuroyanagi 46,969 27.7 New
JCP Muneharu Fusa 29,901 17.7 New
Democratic Noboru Osawa 28,181 16.6 New
Independent Yoshihisa Kitaura 2,629 1.6 New
Registered electors 293,912
Turnout 173,731 59.1 New
LDP win (new seat)

References

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  1. ^ "総務省|令和4年9月1日現在選挙人名簿及び在外選挙人名簿登録者数" [Ministry of Internal Affairs and Communications - Number of registered voters as of 1 September 2022] (in Japanese). Retrieved 2023-01-04.
  2. ^ "Kakizawa, ex-foreign minister, dies". The Japan Times. 2009-01-28. Retrieved 2023-01-13.
  3. ^ NEWS, KYODO. "Ex-LDP member quits as lawmaker amid alleged election law violation". Kyodo News+. Retrieved 2024-03-27.
  4. ^ "2024年衆議院総選挙 東京15区". NHK (in Japanese). Retrieved 2024-11-29.
  5. ^ "Japan's opposition party CDPJ sweeps 3 by-elections in Lower House". Asia News Network. 14 March 2024. Retrieved 11 May 2024.
  6. ^ "Japanese lawmaker Mito Kakizawa arrested over vote-buying allegations". Kyodo News+. 28 December 2023. Retrieved 11 May 2024.
  7. ^ "Ex-senior vice justice minister Mito Kakizawa found guilty of vote buying". The Japan Times. 2024-03-14. Retrieved 2024-05-11.
  8. ^ "【衆院3補選詳報】東京は酒井菜摘氏「真っ当な政治作る」 小池百合子知事の姿は? 立民3-0自民:東京新聞 TOKYO Web". 東京新聞 TOKYO Web (in Japanese). Retrieved 2024-05-11.
  9. ^ "衆院補選 東京15区 | Nhk選挙Web" (in Japanese). NHK. Retrieved 29 November 2024.
  10. ^ "東京15区 - 第49回衆議院議員選挙" [Tokyo 15th District - 49th House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  11. ^ "東京15区 - 第48回衆議院議員選挙" [Tokyo 15th District - 48th House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  12. ^ "東京15区 - 第47回衆議院議員選挙" [Tokyo 15th District - 47th House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  13. ^ "東京15区 - 第46回衆議院議員選挙" [Tokyo 15th District - 46th House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  14. ^ "東京15区 - 第45回衆議院議員選挙" [Tokyo 15th District - 45th House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  15. ^ "東京15区 - 第44回衆議院議員選挙" [Tokyo 15th District - 44th House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  16. ^ "東京15区 - 第43回衆議院議員選挙" [Tokyo 15th District - 43rd House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  17. ^ "東京15区 - 第42回衆議院議員選挙" [Tokyo 15th District - 42nd House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  18. ^ "東京2区・東京15区・静岡8区 - 第41回衆議院議員補欠選挙" [Tokyo 2nd District - Tokyo 15th District - Shizuoka 8th District - 41st House of Representatives by-election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.
  19. ^ "東京15区 - 第41回衆議院議員選挙" [Tokyo 15th District - 41st House of Representatives general election]. go2senkyo.com (in Japanese). Retrieved 2023-01-13.