Kagoshima 1st District(鹿児島県第1区, Kagoshima-ken dai-i-ku) is a single-member electoral district of the House of Representatives the lower house of the Diet of Japan. The district is in Kagoshima Prefecture and covers most of the prefectural capital the city of Kagoshima (a small part of the city is in the Kagoshima 2nd district) and includes Kagoshima District which covers several small islands south of Kyushu. In of 2021 the district had 358,559 eligible voters.

The district was created following the 1994 Japanese electoral reform. From the first elections in 1996 until 2009, the Representative was Okiharu Yasuoka who was first elected to the Diet in 1972 and was for a long time a Representative for an electoral district that covered the Amami Islands.

In the DPJ victory in the 2009 elections the district was won by democrat Hiroshi Kawauchi, but Yasuoka won the district back in 2012.

Yasuoka retired for health reasons in 2017 and his son Hirotake Yasuoka ran for his seat in 2017 but lost to Kawauchi. In 2021 Hirotake Yasuoka was put on a safe spot in the Kyushu proportional representation block, where he gained a seat in the Diet, and was replaced by Takuma Miyaji as the LDP candidate. Miyaji won the seat back in the 2021 election. Miyaji is the son of Kazuaki Miyaji, former Representative of the Kagoshima 3rd district and had first gained seat in the Diet in 2017 in the Kyushu PR block.

List of representatives

RepresentativePartyDatesNotes
Okiharu YasuokaLDP1996 – 2009
Hiroshi KawauchiDPJ2009 – 2012
Okiharu YasuokaLDP2012 – 2017
Hiroshi KawauchiCDP2017 – 2021
Takuma MiyajiLDP2021 – 2024
Hiroshi KawauchiCDP2024 – 2026
Takuma MiyajiLDP2026 –

Election results

2026
PartyCandidateVotes%±%
LDPTakuma Miyaji92,32151.05.5
Centrist ReformHiroshi Kawauchi57,26231.714.3
SanseitōShunichi Makino (elected in Kyushu PR block)27,07115.05.5
JCPShinnosuke Koyama4,2282.3
Registered electors350,999
Turnout52.221,57
LDP gain from Centrist Reform
2024
PartyCandidateVotes%±%
CDPHiroshi Kawauchi80,91846.00.8
LDPTakuma Miyaji (elected in Kyushu PR block)78,22144.58.7
SanseitōTakuma Nobori16,6079.4
Registered electors353,174
Turnout50.653.45
CDP gain from LDP
2021
PartyCandidateVotes%±%
LDPTakuma Miyaji101,25153.212.4
CDPHiroshi Kawauchi89,23246.86.0
Turnout54.102.33
LDP gain from CDP
2017
PartyCandidateVotes%±%
CDPHiroshi Kawauchi76,69941.810.8
LDPHirotake Yasuoka74,83140.83.4
IshinTsuyoshi Yamano'uchi26,89514.75.0
IndependentKasuhiro Miyazaki50662.8
Turnout51.775.42
CDP gain from LDP
2014
PartyCandidateVotes%±%
LDPOkiharu Yasuoka67,37644.11.4
DemocraticHiroshi Kawauchi47,31531.05.6
IshinTsuyoshi Yamano'uchi30,13319.71.8
JCPHironobu Yamaguchi80245.21.7
Turnout46.354.83
LDP hold
2012
PartyCandidateVotes%±%
LDPOkiharu Yasuoka76,65245.52.8
DemocraticHiroshi Kawauchi42,79225.427.8
RestorationTsuyoshi Yamano'uchi (won PR seat)36,18821,5
TomorrowShin'ichirō Watanabe6,9264.1
JCPHironobu Yamaguchi5,9513.51.6
Turnout51.1815.70
LDP gain from Democratic
2009
PartyCandidateVotes%±%
DemocraticHiroshi Kawauchi117,38353.212.2
LDPOkiharu Yasuoka94,22642.710.8
JCPHironobu Yamaguchi6,4222.91.6
IndependentJun'ichi Yamashita1,4290.6
Happiness RealizationJun'ichi Kawata10790.5
Turnout66.882.66
Democratic gain from LDP
2005
PartyCandidateVotes%±%
LDPOkiharu Yasuoka112,43753.51.5
DemocraticHiroshi Kawauchi (won PR seat)88,28442.01.0
JCPMichiko Katsurada9,5254.50.6
Turnout64.227.11
LDP hold
2003
PartyCandidateVotes%±%
LDPOkiharu Yasuoka95,84152.04.2
DemocraticHiroshi Kawauchi (won PR seat)79,24343.00.1
JCPHaruki Yamaguchi9,3595.14.1
Turnout57.11
LDP hold