Aichi 9th district

Aichi 9th district
Parliamentary constituency
for the Japanese House of Representatives
Numbered map of Aichi Prefecture single-member districts
PrefectureAichi
Proportional DistrictTokai
Electorate381,372[1]
Current constituency
Created1994
SeatsOne
PartyCDP
RepresentativeMitsunori Okamoto
MunicipalitiesAma, Aisai, Inazawa, Tsushima, Yatomi, and Ama District.

Aichi 9th district (愛知県第9区, Aichi-ken dai-kyuku or simply 愛知9区, Aichi-ken kyuku) is a single-member constituency of the House of Representatives in the national Diet of Japan located in Aichi Prefecture.

Areas covered

since 2022

[2][3]

2013 - 2022

[4][5]

1994 - 2013

[6]

List of representatives

Election Representative Party Notes
1996[7] Toshiki Kaifu New Frontier
Liberal
2000[8] New Conservative
2003[9]
2005[10] LDP
2009[11] Mitsunori Okamoto Democratic
2012[12] Yasumasa Nagasaka [ja] LDP
2014[13]
2017[14]
2021[15]
2024[16] Mitsunori Okamoto CDP

Election results

2024 • 2021 • 2017 • 2014 • 2012 • 2009 • 2005 • 2003 • 2000 • 1996

2024

2024[16]
Party Candidate Votes % ±%
CDP Mitsunori Okamoto 91,152 48.03
LDP Yasumasa Nagasaka [ja]
(imcumbent)
(won PR seat) 		78,726 41.48
JCP Keiko Ito 19,899 10.49 N/A
Majority 12,426 6.55
Registered electors 377,902
Turnout 52.01 Decrease 1.97
CDP gain from LDP

2021

2021[15]
Party Candidate Votes % ±%
Liberal Democratic
(endorsed by Komeito) 		Yasumasa Nagasaka [ja]
(incumbent) 		120,213 52.74
CDP Mitsunori Okamoto
(PR seat incumbent) 		107,722 47.26 New
Majority 12,491 5.48
Registered electors 432,760
Turnout 53.98 Increase 2.03
LDP hold

2017

2017[14]
Party Candidate Votes % ±%
Liberal Democratic
(endorsed by Komeito) 		Yasumasa Nagasaka [ja]
(incumbent) 		104,419 47.50
Kibō no Tō Mitsunori Okamoto
(PR seat incumbent)
(won PR seat) 		89,908 40.90 New
Communist Hiroshi Watanabe 25,489 11.60
Majority 14,511 6.60
Registered electors 435,193
Turnout 51.95 Increase 1.15
LDP hold

2014

2014[13]
Party Candidate Votes % ±%
Liberal Democratic
(endorsed by Komeito) 		Yasumasa Nagasaka [ja]
(incumbent) 		98,594 47.27
Democratic Mitsunori Okamoto
(won PR seat) 		85,967 41.22
Communist Hiroshi Watanabe 24,003 11.51
Majority 12,627 6.05
Registered electors 424,434
Turnout 50.80 Decrease 7.20
LDP hold

2012

2012[12]
Party Candidate Votes % ±%
Liberal Democratic
(endorsed by Komeito) 		Yasumasa Nagasaka [ja] 93,757 39.40
Democratic
(endorsed by PNP) 		Mitsunori Okamoto
(incumbent) 		62,033 26.07
Restoration
(endorsed by Your) 		Masayasu Nakano [ja] 46,739 19.64 New
Tomorrow
(endorsed by Daichi) 		Makoto Igeta 20,244 8.51 New
Communist Shozo Matsuzaki 15,186 6.38 N/A
Majority 31,724 13.33
Registered electors 423,038
Turnout 58.00 Decrease 12.30
LDP gain from Democratic

2009

2009[11]
Party Candidate Votes % ±%
Democratic Mitsunori Okamoto
(PR seat incumbent) 		180,609 62.42
Liberal Democratic Toshiki Kaifu
(incumbent) 		100,549 34.75
Happiness Realization Kimiko Itaya 8,200 2.83 New
Majority 80,060 27.67
Registered electors 421,977
Turnout 70.30 Increase 3.15
Democratic gain from LDP

2005

2005[10]
Party Candidate Votes % ±%
Liberal Democratic Toshiki Kaifu
(incumbent) 		130,771 47.66 N/A
Democratic Mitsunori Okamoto
(PR seat incumbent)
(won PR seat) 		110,809 40.38
Communist Shozo Matsuzaki 17,489 6.37
People's New Makoto Igeta 15,314 5.58 New
Majority 19,962 7.28
Registered electors 417,340
Turnout 67.15 Increase 9.26
LDP hold

2003

2003[9]
Party Candidate Votes % ±%
New Conservative Toshiki Kaifu
(incumbent) 		104,075 44.59
Democratic Mitsunori Okamoto
(won PR seat) 		92,554 39.65
Independent Makoto Igeta 20,565 8.81 New
Communist Shozo Matsuzaki 16,213 6.95
Majority 11,521 4.94
Registered electors 414,797
Turnout 57.89
New Conservative hold

2000

2000[8]
Party Candidate Votes % ±%
New Conservative Toshiki Kaifu
(incumbent) 		122,175 53.16 New
Democratic Yoshie Meguro 73,321 31.90 New
Communist Shozo Matsuzaki 24,266 10.56
Independent Katsuyuki Ōmiya 6,117 2.66 New
Liberal League Yoshiaki Yamazaki 3,936 1.71 New
Majority 48,854 21.26
Turnout
New Conservative hold

1996

1996[7]
Party Candidate Votes % ±%
New Frontier Toshiki Kaifu 111,578 47.68 New
Liberal Democratic Hiroshi Yoshikawa 58,059 24.81 New
Democratic Kanju Sato [ja] 42,393 18.12 New
Communist Shizuo Hibi 20,290 8.67 New
Culture Forum Reiko Yasuda 921 0.39 New
Independent Tadanori Ōi 422 0.18 New
People's Party Sakae Shirai [ja] 338 0.14 New
Majority 53,519 22.87
Turnout
New Frontier win (new seat)

References

  1. ^ Ministry of Internal Affairs and Communications (MIC): [1] (in Japanese)
  2. ^ "衆議院トップページ >立法情報 >制定法律情報 >第210回国会　制定法律の一覧 >公職選挙法の一部を改正する法律 法律第八十九号（令四・一一・二八）". House of Representatives of Japan. 2022-11-28. Retrieved 2023-02-23.
  3. ^ "愛知県" (PDF). Ministry of Internal Affairs and Communications. Retrieved 2023-01-09.
  4. ^ "衆議院トップページ >立法情報 >制定法律情報 >第183回国会　制定法律の一覧 >衆議院小選挙区選出議員の選挙区間における人口較差を緊急に是正するための公職選挙法及び衆議院議員選挙区画定審議会設置法の一部を改正する法律の一部を改正する法律 法律第六十八号（平二五・六・二八）". House of Representatives of Japan. 2013-06-28. Retrieved 2021-10-02.
  5. ^ "愛知県" (PDF). Ministry of Internal Affairs and Communications. Retrieved 2021-10-02.
  6. ^ "衆議院トップページ >立法情報 >制定法律情報 >第131回国会　制定法律の一覧 >法律第百四号（平六・一一・二五）". House of Representatives of Japan. 1994-11-25. Retrieved 2021-10-02.
  7. ^ a b "第41回衆議院議員選挙 - 愛知9区". Senkyo.com (in Japanese). Retrieved 2023-10-29.
  8. ^ a b "第42回衆議院議員選挙 - 愛知9区". Senkyo.com (in Japanese). Retrieved 2023-10-29.
  9. ^ a b "第43回衆議院議員選挙 - 愛知9区". Senkyo.com (in Japanese). Retrieved 2023-10-29.
  10. ^ a b "第44回衆議院議員選挙 - 愛知9区". the Asahi Shinbun (in Japanese). Retrieved 2023-10-29.
  11. ^ a b "第45回衆議院議員選挙 - 愛知9区". the Asahi Shinbun (in Japanese). Retrieved 2023-10-29.
  12. ^ a b "開票結果 小選挙区 愛知". Yomiuri Shimbun (in Japanese). Retrieved 2023-10-29.
  13. ^ a b "2014衆院選:衆議院選挙:選挙アーカイブス:NHK選挙WEB". NHK (in Japanese). Retrieved 2023-10-29.
  14. ^ a b "2017衆院選:衆議院選挙:選挙アーカイブス:NHK選挙WEB". Yomiuri Shimbun (in Japanese). Retrieved 2023-10-08.
  15. ^ a b "2021年衆議院総選挙　愛知9区". NHK (in Japanese). Retrieved 2023-10-08.
  16. ^ a b "2024年衆議院総選挙　愛知10区". NHK (in Japanese). Retrieved 2024-11-15.