Candidates
佐久間 慶子 — Niigata 3rd District 2026
Updated 25 Tháng 5, 2026
- chevron_rightOutcome: Lost in Niigata 3rd District (2026) — 19,878 votes (9.4%), rank #3 of 3.
- chevron_rightProfile: Female, age 41. Background: 経営者. Status entering: Newcomer.
fact_check Quick Facts
Age
41 yrs
Gender
female ♀ Female
Election Date
Th10 22, 2026
System
Single-member
Seats Recorded
—
Election Performance
Vote Count & Share
Votes
19,878
Vote Share
9.4%
Rank
#3
Outcome
Lost
Win/Loss Outcome
Outcome
Did not win seat in 2026
Political Context
Party Affiliation
Sanseito
参政
Party Candidates 2026
197
Party Seats Won
15
Prefectures
56
Avg Share
10.8%
Occupation & Background
Category経営者
Detail建築関連会社社長
Incumbency & Career Wins
- Status entering the 2026 election: Newcomer
- Age at time of election: 41
Comparative Snapshot
Same District Rivals
| Rank | Candidate | Party | Votes | Share |
|---|---|---|---|---|
| #1 | 斎藤 洋明 | LDP | 115,991 | 54.6% |
| #2 | 黒岩 宇洋 | Centrist | 76,452 | 36.0% |
| #3 | 佐久間 慶子 this page | Sanseito | 19,878 | 9.4% |
Same-Party Peers in 2026
- 加地 敏子 — Tokyo 13th District, 9.4% (Lost)
- 堀越 麻紀 — Ibaraki 6th District, 9.4% (Lost)
- 鈴木 勝裕 — Aichi 15th District, 9.4% (Lost)
- 平井 恵里子 — Niigata 2nd District, 9.5% (Lost)
- 重松 貴美 — Saga 1st District, 9.3% (Lost)
Candidates with Similar Vote Share
- 益田 牧子 (JCP, Kumamoto 2nd District) — 9.4%
- 鈴木 節子 (JCP, Shizuoka 1st District) — 9.4%
- 加地 敏子 (Sanseito, Tokyo 13th District) — 9.4%
- 櫛渕 万里 (Reiwa, Tokyo 14th District) — 9.4%
- 堀越 麻紀 (Sanseito, Ibaraki 6th District) — 9.4%
Niigata 3rd District Historical Context
| Year | Winner | Party | Winning Votes | Winning Share | Field Size | Margin |
|---|---|---|---|---|---|---|
| 2026 | 斎藤 洋明 | LDP | 115,991 | 54.6% | 3 | 39,539 |
| 2024 | 黒岩 宇洋 | CDP | 105,275 | 49.3% | 3 | 10,291 |
| 2021 | 斎藤 洋明 | LDP | 102,564 | 53.6% | 2 | 13,820 |
Niigata Snapshot (2026)
Districts
5
Candidates
19
Seats Filled
5
Active Parties
6
Party representation across Niigata
LDP5 cand · 5 won
Centrist5 cand · 0 won
Sanseito5 cand · 0 won
Ishin2 cand · 0 won
JCP1 cand · 0 won
DPP1 cand · 0 won
Top performers across Niigata (2026)
| Candidate | District | Party | Votes | Share | Result |
|---|---|---|---|---|---|
| 斎藤 洋明 | Niigata 3rd District | LDP | 115,991 | 54.6% | Won |
| 国定 勇人 | Niigata 2nd District | LDP | 111,803 | 49.0% | Won |
| 鷲尾 英一郎 | Niigata 4th District | LDP | 107,128 | 53.6% | Won |
| 高鳥 修一 | Niigata 5th District | LDP | 104,206 | 52.1% | Won |
| 内山 航 | Niigata 1st District | LDP | 92,578 | 46.8% | Won |
| 菊田 真紀子 | Niigata 2nd District | Centrist | 85,602 | 37.5% | Lost |
| 梅谷 守 | Niigata 5th District | Centrist | 79,294 | 39.6% | Lost |
Where 佐久間 慶子 ranks
Among Sanseito single-member candidates in 2026
Higher vote share than 36.3% (66 of 182)
Among ALL single-member candidates in 2026
Higher vote share than 24.8% (277 of 1119)
経営者 cohort (2026)
Cohort Size
61
Cohort Wins
4
Cohort Avg Share
14.5%
Cohort Avg Age
47
佐久間 慶子's 9.4% vote share is 5.07 percentage points below the 経営者 cohort average for 2026.
Frequently Asked Questions
Who has won Niigata 3rd District in recent elections?expand_more
Recorded winners of Niigata 3rd District: 斎藤 洋明 (2026); 黒岩 宇洋 (2024); 斎藤 洋明 (2021).
How many Niigata districts ran candidates in 2026?expand_more
Niigata had 5 districts with 19 total candidates in 2026, of whom 5 won seats.
Did 佐久間 慶子 win the 2026 election?expand_more
佐久間 慶子 did not win the 2026 House of Representatives race in Niigata 3rd District, recording 19,878 votes (9.4%).
Which party did 佐久間 慶子 represent?expand_more
佐久間 慶子 ran as a Sanseito candidate. The party fielded 197 candidates in 2026.
Who won Niigata 3rd District in 2026?expand_more
斎藤 洋明 (LDP) won Niigata 3rd District with 115,991 votes, a vote share of 54.6%.