Candidates
亀井 亜紀子 — Shimane 1st District 2021
Updated 25 Tháng 5, 2026
- chevron_rightOutcome: Lost in Shimane 1st District (2021) — 66,847 votes (41.3%), rank #2 of 3.
- chevron_rightProfile: Female, age 56. Background: 議員. Status entering: Incumbent.
- chevron_rightEndorsed by: 社民県連合
fact_check Quick Facts
Age
56 yrs
Gender
female ♀ Female
Election Date
Th10 31, 2021
System
Single-member
Seats Recorded
—
Election Performance
Vote Count & Share
Votes
66,847
Vote Share
41.3%
Rank
#2
Outcome
Lost
Win/Loss Outcome
Outcome
Did not win seat in 2021
Political Context
Party Affiliation
CDP
立民
Party Candidates 2021
253
Party Seats Won
96
Prefectures
58
Avg Share
39.0%
Occupation & Background
Category議員
Detail元参議院議員、立憲民主党国際局長
Incumbency & Career Wins
- Status entering the 2021 election: Incumbent
- Total recorded wins to date: 1
- Age at time of election: 56
Endorsements
社民県連合
Comparative Snapshot
Same District Rivals
| Rank | Candidate | Party | Votes | Share |
|---|---|---|---|---|
| #1 | 細田 博之 | LDP | 90,638 | 56.0% |
| #2 | 亀井 亜紀子 this page | CDP | 66,847 | 41.3% |
| #3 | 亀井 彰子 | Independent | 4,318 | 2.7% |
Same-Party Peers in 2021
- 岡本 章子 — Miyagi 1st District, 41.2% (Lost)
- 阪口 直人 — Gifu 3rd District, 41.4% (Lost)
- 鈴木 庸介 — Tokyo 10th District, 41.1% (Lost)
- 横光 克彦 — Oita 3rd District, 41.6% (Lost)
- 手塚 仁雄 — Tokyo 5th District, 41.0% (Won)
Candidates with Similar Vote Share
- 住吉 寛紀 (Ishin, Hyogo 11th District) — 41.3%
- 岡本 章子 (CDP, Miyagi 1st District) — 41.2%
- 金子 万寿夫 (LDP, Kagoshima 2nd District) — 41.4%
- 田中 和徳 (LDP, Kanagawa 10th District) — 41.4%
- 阪口 直人 (CDP, Gifu 3rd District) — 41.4%
Career Timeline
Elections
3
Career Wins
1
Total Votes
190,198
Best Vote Share
51.1%
| Year | District | Party | System | Votes | Share | Rank | Result |
|---|---|---|---|---|---|---|---|
| 2026 | Shimane 1st District | Centrist | Single-member | 49,867 | 37.7% | #2 | Lost |
| 2024 | Shimane 1st District | CDP | Single-member | 73,484 | 51.1% | #1 | Won |
| 2021 | Shimane 1st District | CDP | Single-member | 66,847 | 41.3% | #2 | Lost |
Shimane 1st District Historical Context
| Year | Winner | Party | Winning Votes | Winning Share | Field Size | Margin |
|---|---|---|---|---|---|---|
| 2026 | 高階 恵美子 | LDP | 67,438 | 51.0% | 4 | 17,571 |
| 2024 | 亀井 亜紀子 | CDP | 73,484 | 51.1% | 3 | 10,246 |
| 2021 | 細田 博之 | LDP | 90,638 | 56.0% | 3 | 23,791 |
Where 亀井 亜紀子 ranks
Among CDP single-member candidates in 2021
Higher vote share than 52.8% (113 of 214)
Among ALL single-member candidates in 2021
Higher vote share than 57.9% (496 of 857)
議員 cohort (2021)
Cohort Size
142
Cohort Wins
64
Cohort Avg Share
30.4%
Cohort Avg Age
53
亀井 亜紀子's 41.3% vote share is 10.89 percentage points above the 議員 cohort average for 2021.
Frequently Asked Questions
How many times has 亀井 亜紀子 run for the House of Representatives?expand_more
亀井 亜紀子 has appeared in 3 recorded elections, winning 1 of them. The most recent was 2021.
Who has won Shimane 1st District in recent elections?expand_more
Recorded winners of Shimane 1st District: 高階 恵美子 (2026); 亀井 亜紀子 (2024); 細田 博之 (2021).
Did 亀井 亜紀子 win the 2021 election?expand_more
亀井 亜紀子 did not win the 2021 House of Representatives race in Shimane 1st District, recording 66,847 votes (41.3%).
Which party did 亀井 亜紀子 represent?expand_more
亀井 亜紀子 ran as a CDP candidate. The party fielded 253 candidates in 2021.
Who won Shimane 1st District in 2021?expand_more
細田 博之 (LDP) won Shimane 1st District with 90,638 votes, a vote share of 56.0%.