Candidates
岡本 充功 — Aichi 9th District 2021
Updated 25 Tháng 5, 2026
- chevron_rightOutcome: Lost in Aichi 9th District (2021) — 107,722 votes (47.3%), rank #2 of 2.
- chevron_rightProfile: Male, age 50. Background: 政務官. Status entering: Incumbent.
- chevron_rightCareer wins to date: 5
fact_check Quick Facts
Age
50 yrs
Gender
male ♂ Male
Election Date
Th10 31, 2021
System
Single-member
Seats Recorded
—
Election Performance
Vote Count & Share
Votes
107,722
Vote Share
47.3%
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政務官
Detail医師、元厚生労働政務官
Incumbency & Career Wins
- Status entering the 2021 election: Incumbent
- Total recorded wins to date: 5
- Age at time of election: 50
Comparative Snapshot
Same District Rivals
| Rank | Candidate | Party | Votes | Share |
|---|---|---|---|---|
| #1 | 長坂 康正 | LDP | 120,213 | 52.7% |
| #2 | 岡本 充功 this page | CDP | 107,722 | 47.3% |
Same-Party Peers in 2021
- 菅 直人 — Tokyo 18th District, 47.1% (Won)
- 青山 大人 — Ibaraki 6th District, 47.5% (Lost)
- 下条 みつ — Nagano 2nd District, 47.5% (Won)
- 中島 克仁 — Yamanashi 1st District, 47.6% (Lost)
- 吉田 統彦 — Aichi 1st District, 47.6% (Lost)
Candidates with Similar Vote Share
- 前田 一男 (LDP, Hokkaido 8th District) — 47.3%
- 宮沢 博行 (LDP, Shizuoka 3rd District) — 47.3%
- 林 幹雄 (LDP, Chiba 10th District) — 47.3%
- 青山 周平 (LDP, Aichi 12th District) — 47.3%
- 石井 拓 (LDP, Aichi 13th District) — 47.3%
Career Timeline
Elections
3
Career Wins
1
Total Votes
256,958
Best Vote Share
48.0%
| Year | District | Party | System | Votes | Share | Rank | Result |
|---|---|---|---|---|---|---|---|
| 2026 | Aichi 9th District | Centrist | Single-member | 58,084 | 28.1% | #2 | Lost |
| 2024 | Aichi 9th District | CDP | Single-member | 91,152 | 48.0% | #1 | Won |
| 2021 | Aichi 9th District | CDP | Single-member | 107,722 | 47.3% | #2 | Lost |
Aichi 9th District Historical Context
| Year | Winner | Party | Winning Votes | Winning Share | Field Size | Margin |
|---|---|---|---|---|---|---|
| 2026 | 長坂 康正 | LDP | 93,351 | 45.1% | 5 | 35,267 |
| 2024 | 岡本 充功 | CDP | 91,152 | 48.0% | 3 | 12,426 |
| 2021 | 長坂 康正 | LDP | 120,213 | 52.7% | 2 | 12,491 |
Aichi Snapshot (2021)
Districts
15
Candidates
41
Seats Filled
15
Active Parties
8
Party representation across Aichi
LDP15 cand · 11 won
CDP13 cand · 3 won
JCP5 cand · 0 won
Ishin3 cand · 0 won
Reiwa2 cand · 0 won
NHK Party1 cand · 0 won
DPP1 cand · 1 won
Independent1 cand · 0 won
Top performers across Aichi (2021)
| Candidate | District | Party | Votes | Share | Result |
|---|---|---|---|---|---|
| 八木 哲也 | Aichi 11th District | LDP | 158,018 | 69.1% | Won |
| 鈴木 淳司 | Aichi 7th District | LDP | 144,725 | 54.7% | Won |
| 重徳 和彦 | Aichi 12th District | CDP | 142,536 | 52.7% | Won |
| 丹羽 秀樹 | Aichi 6th District | LDP | 136,168 | 58.3% | Won |
| 大西 健介 | Aichi 13th District | CDP | 134,033 | 52.7% | Won |
| 古川 元久 | Aichi 2nd District | DPP | 131,397 | 62.3% | Won |
| 青山 周平 | Aichi 12th District | LDP | 128,083 | 47.3% | Lost |
Where 岡本 充功 ranks
Among CDP single-member candidates in 2021
Higher vote share than 72.9% (156 of 214)
Among ALL single-member candidates in 2021
Higher vote share than 68.7% (589 of 857)
政務官 cohort (2021)
Cohort Size
107
Cohort Wins
67
Cohort Avg Share
45.6%
Cohort Avg Age
52
岡本 充功's 47.3% vote share is 1.68 percentage points above the 政務官 cohort average for 2021.
Frequently Asked Questions
How many times has 岡本 充功 run for the House of Representatives?expand_more
岡本 充功 has appeared in 3 recorded elections, winning 1 of them. The most recent was 2021.
Who has won Aichi 9th District in recent elections?expand_more
Recorded winners of Aichi 9th District: 長坂 康正 (2026); 岡本 充功 (2024); 長坂 康正 (2021).
How many Aichi districts ran candidates in 2021?expand_more
Aichi had 15 districts with 41 total candidates in 2021, of whom 15 won seats.
Did 岡本 充功 win the 2021 election?expand_more
岡本 充功 did not win the 2021 House of Representatives race in Aichi 9th District, recording 107,722 votes (47.3%).
Which party did 岡本 充功 represent?expand_more
岡本 充功 ran as a CDP candidate. The party fielded 253 candidates in 2021.
Who won Aichi 9th District in 2021?expand_more
長坂 康正 (LDP) won Aichi 9th District with 120,213 votes, a vote share of 52.7%.