Saitama 9th district

Saitama 9th district
Parliamentary constituency for the Japanese House of Representatives
Numbered map of the Saitama Prefecture single seats
Prefecture	Saitama
Proportional District	Northern Kanto
Electorate	400,885[1]
Current constituency
Created	1994
Seats	One
Party	CDP
Representative	Shinji Sugimura
Municipalities	Hannō, Hidaka, Iruma, Sayama, and part of Iruma District.

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

Areas covered

Since 2013

• Hannō
• Hidaka
• Iruma
• Sayama
• Part of Iruma District
  • Moroyama
  • Ogose

^[2][3]

1994 - 2013

• Hannō
• Hidaka
• Iruma
• Sayama
• Part of Iruma District
  • Moroyama
  • Ogose
  • Naguri

^[4]

List of representatives

Election	Representative	Party		Notes
1996[5]	Matsushige Ono		LDP
2000[6]
2003[7]
2005[8]
2009[9]	Fumihiko Igarashi		Democratic
2012[10]	Taku Otsuka		LDP
2014[11]
2017[12]
2021[13]
2024[14]	Shinji Sugimura		CDP

Election results

2024

2024^[14]

Party		Candidate	Votes	%	±%
	CDP	Shinji Sugimura	83,107	41.58
	LDP	Taku Otsuka	78,811	39.43
	Ishin	Hidemasa Kondo	21,680	10.85	New
	JCP	Yoshinao Inomata	16,293	8.15
Majority			4,296	2.15
Registered electors			399,739
Turnout				51.78	3.66
	CDP gain from LDP

2021

2021^[13]

Party		Candidate	Votes	%	±%
	LDP	Taku Otsuka	117,002	53.37
	CDP	Shinji Sugimura	80,756	36.84	New
	JCP	Miharu Kanda	21,464	9.79
Majority			36,246	16.53
Registered electors			404,689
Turnout				55.44	2.81
	LDP hold

2017

2017^[12]

Party		Candidate	Votes	%	±%
	LDP	Taku Otsuka	111,815	53.19
	Kibō no Tō	Shinji Sugimura	57,599	27.40	New
	JCP	Miharu Kanda	40,822	19.42
Majority			54,216	25.79
Registered electors			410,494
Turnout				52.63	0.95
	LDP hold

2014

2014^[11]

Party		Candidate	Votes	%	±%
	LDP	Taku Otsuka	111,316	53.01
	Innovation	Hitoshi Aoyagi	60,121	28.63
	JCP	Sumiko Hiromori	38,534	18.35
Majority			51,195	24.38
Registered electors			404,476
Turnout				53.58	5.06
	LDP hold

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. June 28, 2013. Retrieved September 30, 2025.
3. "Saitama" (PDF). Minister for Internal Affairs and Communications. Retrieved September 30, 2025.
4. "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. November 25, 1994. Retrieved September 30, 2025.
5. "第41回衆議院議員総選挙 - 埼玉9区". Senkyo.com (in Japanese). Retrieved September 30, 2025.
6. "第42回衆議院議員総選挙 - 埼玉9区". Senkyo.com (in Japanese). Retrieved September 30, 2025.
7. "第43回衆議院議員総選挙 - 埼玉9区". Senkyo.com (in Japanese). Retrieved September 30, 2025.
8. "第44回衆議院議員総選挙 - 埼玉9区". The Asahi Shinbun (in Japanese). Retrieved September 22, 2025.
9. "第45回衆議院議員総選挙 - 埼玉9区". The Asahi Shinbun (in Japanese). Retrieved September 22, 2025.
10. "開票結果 小選挙区 埼玉". The Asahi Shimbun (in Japanese). Retrieved September 30, 2025.
11. "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 September 30, 2025.
12. "2017衆院選:衆議院議員総選挙:選挙アーカイブス:NHK選挙WEB". NHK (in Japanese). Retrieved September 30, 2025.
13. "2021年衆議院議員総選挙 埼玉". NHK (in Japanese). Retrieved September 30, 2025.
14. "2024年衆議院議員総選挙 埼玉". NHK (in Japanese). Retrieved September 30, 2025.