Candidates
島田 誠 — Saitama 11th District 2026
Updated 25 Tháng 5, 2026
- chevron_rightOutcome: Lost in Saitama 11th District (2026) — 32,508 votes (19.5%), rank #2 of 5.
- chevron_rightProfile: Male, age 67. Background: 首長. Status entering: Newcomer.
fact_check Quick Facts
Age
67 yrs
Gender
male ♂ Male
Election Date
Th10 22, 2026
System
Single-member
Seats Recorded
—
Election Performance
Vote Count & Share
Votes
32,508
Vote Share
19.5%
Rank
#2
Outcome
Lost
Win/Loss Outcome
Outcome
Did not win seat in 2026
Political Context
Party Affiliation
Centrist
中道
Party Candidates 2026
244
Party Seats Won
49
Prefectures
58
Avg Share
30.3%
Occupation & Background
Category首長
Detail元埼玉県寄居町長
Incumbency & Career Wins
- Status entering the 2026 election: Newcomer
- Age at time of election: 67
Comparative Snapshot
Same District Rivals
| Rank | Candidate | Party | Votes | Share |
|---|---|---|---|---|
| #1 | 小泉 龍司 | LDP | 88,744 | 53.4% |
| #2 | 島田 誠 this page | Centrist | 32,508 | 19.5% |
| #3 | 布施 卓人 | DPP | 19,174 | 11.5% |
| #4 | 甲斐 隆 | Sanseito | 16,744 | 10.1% |
| #5 | 柿沼 遥輝 | JCP | 9,156 | 5.5% |
Same-Party Peers in 2026
- 中原 翔太 — Tokyo 12th District, 19.6% (Lost)
- 松田 功 — Aichi 16th District, 19.4% (Lost)
- 中村 正善 — Shizuoka 5th District, 19.3% (Lost)
- 国崎 信江 — Aichi 6th District, 19.7% (Lost)
- 平尾 道雄 — Shiga 2nd District, 20.0% (Lost)
Candidates with Similar Vote Share
- 片山 智絵 (DPP, Kanagawa 2nd District) — 19.5%
- 中原 翔太 (Centrist, Tokyo 12th District) — 19.6%
- 原山 大亮 (Ishin, Nara 3rd District) — 19.4%
- 柏倉 祐司 (Ishin, Tochigi 1st District) — 19.6%
- 松田 功 (Centrist, Aichi 16th District) — 19.4%
Career Timeline
Elections
3
Career Wins
0
Total Votes
131,159
Best Vote Share
31.4%
| Year | District | Party | System | Votes | Share | Rank | Result |
|---|---|---|---|---|---|---|---|
| 2026 | Saitama 11th District | Centrist | Single-member | 32,508 | 19.5% | #2 | Lost |
| 2024 | Saitama 11th District | CDP | Single-member | 49,557 | 31.4% | #2 | Lost |
| 2021 | Saitama 11th District | CDP | Single-member | 49,094 | 27.2% | #2 | Lost |
Saitama 11th District Historical Context
| Year | Winner | Party | Winning Votes | Winning Share | Field Size | Margin |
|---|---|---|---|---|---|---|
| 2026 | 小泉 龍司 | LDP | 88,744 | 53.4% | 5 | 56,236 |
| 2024 | 小泉 龍司 | LDP | 91,681 | 58.1% | 3 | 42,124 |
| 2021 | 小泉 龍司 | LDP | 111,810 | 61.9% | 3 | 62,716 |
Saitama Snapshot (2026)
Districts
16
Candidates
55
Seats Filled
16
Active Parties
9
Party representation across Saitama
LDP16 cand · 16 won
Centrist12 cand · 0 won
Sanseito8 cand · 0 won
JCP6 cand · 0 won
DPP5 cand · 0 won
Ishin4 cand · 0 won
Independent2 cand · 0 won
Reiwa1 cand · 0 won
Minor Parties1 cand · 0 won
Top performers across Saitama (2026)
| Candidate | District | Party | Votes | Share | Result |
|---|---|---|---|---|---|
| 村井 英樹 | Saitama 1st District | LDP | 121,002 | 55.7% | Won |
| 柴山 昌彦 | Saitama 8th District | LDP | 118,529 | 52.4% | Won |
| 田中 良生 | Saitama 15th District | LDP | 114,320 | 52.3% | Won |
| 大塚 拓 | Saitama 9th District | LDP | 112,062 | 55.0% | Won |
| 穂坂 泰 | Saitama 4th District | LDP | 110,312 | 52.9% | Won |
| 中野 英幸 | Saitama 7th District | LDP | 107,470 | 57.2% | Won |
| 井原 隆 | Saitama 5th District | LDP | 104,836 | 47.4% | Won |
Where 島田 誠 ranks
Among Centrist single-member candidates in 2026
Higher vote share than 11.4% (23 of 202)
Among ALL single-member candidates in 2026
Higher vote share than 49.5% (554 of 1119)
首長 cohort (2026)
Cohort Size
27
Cohort Wins
10
Cohort Avg Share
34.4%
Cohort Avg Age
60
島田 誠's 19.5% vote share is 14.94 percentage points below the 首長 cohort average for 2026.
Frequently Asked Questions
How many times has 島田 誠 run for the House of Representatives?expand_more
島田 誠 has appeared in 3 recorded elections, winning 0 of them. The most recent was 2026.
Who has won Saitama 11th District in recent elections?expand_more
Recorded winners of Saitama 11th District: 小泉 龍司 (2026); 小泉 龍司 (2024); 小泉 龍司 (2021).
How many Saitama districts ran candidates in 2026?expand_more
Saitama had 16 districts with 55 total candidates in 2026, of whom 16 won seats.
Did 島田 誠 win the 2026 election?expand_more
島田 誠 did not win the 2026 House of Representatives race in Saitama 11th District, recording 32,508 votes (19.5%).
Which party did 島田 誠 represent?expand_more
島田 誠 ran as a Centrist candidate. The party fielded 244 candidates in 2026.
Who won Saitama 11th District in 2026?expand_more
小泉 龍司 (LDP) won Saitama 11th District with 88,744 votes, a vote share of 53.4%.