Candidates

井出 庸生 — Nagano 3rd District 2021

Updated 25 Tháng 5, 2026
  • chevron_rightOutcome: Won in Nagano 3rd District (2021) — 120,023 votes (51.5%), rank #1 of 3.
  • chevron_rightProfile: Male, age 43. Background: 政党役職. Status entering: Incumbent.
  • chevron_rightEndorsed by: 公明
  • chevron_rightCareer wins to date: 4
fact_check Quick Facts
Age
43 yrs
Gender
male ♂ Male
Election Date
Th10 31, 2021
System
Single-member
Seats Recorded
1

Election Performance

Vote Count & Share

Votes
120,023
Vote Share
51.5%
Rank
#1
Outcome
Won

Win/Loss Outcome

Seat
Elected to the House of Representatives

Political Context

Party Affiliation

LDP
自民
Party Candidates 2021
351
Party Seats Won
261
Prefectures
58
Avg Share
51.1%

Occupation & Background

Category政党役職
Detail自民党法務部会長代理、元NHK記者

Incumbency & Career Wins

  • Status entering the 2021 election: Incumbent
  • Total recorded wins to date: 4
  • Age at time of election: 43

Endorsements

公明

Comparative Snapshot

Same District Rivals

RankCandidatePartyVotesShare
#1井出 庸生 this pageLDP120,02351.5%
#2神津 健CDP109,17946.9%
#3池 高生NHK Party3,7221.6%

Same-Party Peers in 2021

  • 平 将明 — Tokyo 4th District, 51.5% (Won)
  • 柴山 昌彦 — Saitama 8th District, 51.6% (Won)
  • 山口 晋 — Saitama 10th District, 51.6% (Won)
  • 三ツ林 裕己 — Saitama 14th District, 51.6% (Won)
  • 井原 巧 — Ehime 3rd District, 51.6% (Won)

Candidates with Similar Vote Share

  • 山岡 達丸 (CDP, Hokkaido 9th District) — 51.5%
  • 平 将明 (LDP, Tokyo 4th District) — 51.5%
  • 枝野 幸男 (CDP, Saitama 5th District) — 51.4%
  • 柴山 昌彦 (LDP, Saitama 8th District) — 51.6%
  • 山口 晋 (LDP, Saitama 10th District) — 51.6%

Career Timeline

Elections
4
Career Wins
3
Total Votes
331,299
Best Vote Share
51.5%
YearDistrictPartySystemVotesShareRankResult
2026Nagano 3rd DistrictLDPSingle-member111,84448.3%#1Won
2024Nagano 3rd DistrictLDPSingle-member99,43145.0%#2Lost
2024Hokuriku-Shinetsu Block (PR Block)LDPPR Block10.0%#3Won
2021Nagano 3rd DistrictLDPSingle-member120,02351.5%#1Won

Nagano 3rd District Historical Context

YearWinnerPartyWinning VotesWinning ShareField SizeMargin
2026井出 庸生LDP111,84448.3%429,922
2024神津 健CDP121,59455.0%222,163
2021井出 庸生LDP120,02351.5%310,844

Nagano Snapshot (2021)

Districts
5
Candidates
12
Seats Filled
5
Active Parties
5

Party representation across Nagano

LDP5 cand · 4 won
CDP4 cand · 1 won
Ishin1 cand · 0 won
NHK Party1 cand · 0 won
JCP1 cand · 0 won

Top performers across Nagano (2021)

CandidateDistrictPartyVotesShareResult
若林 健太Nagano 1st DistrictLDP128,42351.3%Won
篠原 孝Nagano 1st DistrictCDP121,96248.7%Lost
神津 健Nagano 3rd DistrictCDP109,17946.9%Lost
下条 みつNagano 2nd DistrictCDP101,39147.5%Won
宮下 一郎Nagano 5th DistrictLDP97,73054.9%Won
後藤 茂之Nagano 4th DistrictLDP86,96262.6%Won
曽我 逸郎Nagano 5th DistrictCDP80,40845.1%Lost

Where 井出 庸生 ranks

Among LDP single-member candidates in 2021
Higher vote share than 53.8% (150 of 279)
Among ALL single-member candidates in 2021
Higher vote share than 80.2% (687 of 857)

政党役職 cohort (2021)

Cohort Size
210
Cohort Wins
98
Cohort Avg Share
33.5%
Cohort Avg Age
56

井出 庸生's 51.5% vote share is 17.97 percentage points above the 政党役職 cohort average for 2021.

Frequently Asked Questions

How many times has 井出 庸生 run for the House of Representatives?expand_more
井出 庸生 has appeared in 4 recorded elections, winning 3 of them. The most recent was 2021.
Who has won Nagano 3rd District in recent elections?expand_more
Recorded winners of Nagano 3rd District: 井出 庸生 (2026); 神津 健 (2024); 井出 庸生 (2021).
How many Nagano districts ran candidates in 2021?expand_more
Nagano had 5 districts with 12 total candidates in 2021, of whom 5 won seats.
Did 井出 庸生 win the 2021 election?expand_more
井出 庸生 won the 2021 House of Representatives race in Nagano 3rd District, recording 120,023 votes (51.5%).
Which party did 井出 庸生 represent?expand_more
井出 庸生 ran as a LDP candidate. The party fielded 351 candidates in 2021.
Who won Nagano 3rd District in 2021?expand_more
井出 庸生 (LDP) won Nagano 3rd District with 120,023 votes, a vote share of 51.5%.