Party Historical
Japan Socialist Party
- Abbreviation
- JSP
- Founded
- Jul 1, 1945
- Official · en
- Japan Socialist Party
Profiles and linksNo official profile link is published.
Social linksNo social profile link is published.
Party
Japan Socialist Party
Japan
Power-role history
Coalition
Coalition
Governing
Coalition
Coalition
Governing
Party lineage
Merged
- PredecessorRikken Minshutō
- SuccessorJapan Socialist Party
Renamed
- SubjectJapan Socialist Party
Split
- PredecessorJapan Socialist Party
- SuccessorSocialist Democratic Federation
Split
- PredecessorJapan Socialist Party
- SuccessorMinshu Shakai-tō
Merged
- PredecessorRōdōnōmintō
- SuccessorJapan Socialist Party
Merged
- PredecessorUha Shakai Tô
- SuccessorJapan Socialist Party
Merged
- PredecessorSaha Shakai Tô
- SuccessorJapan Socialist Party
Split
- PredecessorJapan Socialist Party
- SuccessorUha Shakai Tô
Split
- PredecessorJapan Socialist Party
- SuccessorSaha Shakai Tô
Split
- PredecessorJapan Socialist Party
- SuccessorRōdōnōmintō
Split
- PredecessorJapan Socialist Party
- SuccessorYakaikakushintou zu
Renamed
- SubjectJapan Socialist Party
Party Facts reference profile
Historical Party Facts reference: vote or seat share in a national election. It is not a poll, a certified result, necessarily the latest election, or a current value.
No Party Facts reference profile is published for this party.
Ideology · Political spectrum
Social democracy
Source classification · Confidence: 80.0%
Party leadership
Partial
Coverage is partial and no record is currently available for this section.
wikidata_party_enrichment_references_unresolvedParty significance
Partial
Coverage is partial and no record is currently available for this section.
wikidata_party_enrichment_references_unresolvedCandidacy
Japan — Parliamentary election — 2021-10-31
Social Democratic Party · Party
Completed · Oct 31, 2021
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 2017-10-22
社会民主党 (Social Democratic Party) · Party
Completed · Oct 22, 2017
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 2014-12-14
Social Democratic Party (SDP) · Party
Completed · Dec 14, 2014
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 2012-12-16
Social Democratic Party · Party
Completed · Dec 16, 2012
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 2009-08-30
Social Democratic Party (SDP) · Party
Completed · Aug 30, 2009
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 2005-09-11
Social Democratic Party (SDPJ) · Party
Completed · Sep 11, 2005
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 2003-11-09
SDJP · Party
Completed · Nov 9, 2003
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 2000-06-25
SDP · Party
Completed · Jun 25, 2000
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1996-10-20
SDJP · Party
Completed · Oct 20, 1996
Affiliated party: Japan Socialist Party
1993 Japanese general election
Tatsuo Shinmori · Candidate
Completed · Jul 18, 1993
Candidacy: Tatsuo Shinmori
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1993-07-18
SDJP · Party
Completed · Jul 18, 1993
Affiliated party: Japan Socialist Party
1990 Japanese general election
Tatsuo Shinmori · Candidate
Completed · Feb 18, 1990
Candidacy: Tatsuo Shinmori
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1990-02-18
JSP · Party
Completed · Feb 18, 1990
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1986-07-06
JSP · Party
Completed · Jul 6, 1986
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1983-12-18
JSP · Party
Completed · Dec 18, 1983
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1980-06-22
JSP · Party
Completed · Jun 22, 1980
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1979-10-07
JSP · Party
Completed · Oct 7, 1979
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1976-12-05
JSP · Party
Completed · Dec 5, 1976
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1972-12-10
SP · Party
Completed · Dec 10, 1972
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1969-12-27
SP · Party
Completed · Dec 27, 1969
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1967-01-29
JSP · Party
Completed · Jan 29, 1967
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1963-11-21
JSP · Party
Completed · Nov 21, 1963
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1960-11-20
JSP · Party
Completed · Nov 20, 1960
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1958-05-22
JSP · Party
Completed · May 22, 1958
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1949-01-23
JSP · Party
Completed · Jan 23, 1949
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1947-04-25
JSP · Party
Completed · Apr 25, 1947
Affiliated party: Japan Socialist Party
Japan — Parliamentary election — 1946-04-10
JSP · Party
Completed · Apr 10, 1946
Affiliated party: Japan Socialist Party
Independent media clusters
1993 Japanese general election · Completed
Aug 9, 2026 · Jul 18, 1993
- Independent clusters, last 30 days
- 0
- Independent clusters, days 31–180
- 0
- Confidence
- 80.0%
1990 Japanese general election · Completed
Aug 9, 2026 · Feb 18, 1990
- Independent clusters, last 30 days
- 0
- Independent clusters, days 31–180
- 0
- Confidence
- 80.0%
1993 Japanese general election · Completed
Aug 9, 2026 · Jul 18, 1993
- Independent clusters, last 30 days
- 0
- Independent clusters, days 31–180
- 0
- Confidence
- 80.0%
1990 Japanese general election · Completed
Aug 9, 2026 · Feb 18, 1990
- Independent clusters, last 30 days
- 0
- Independent clusters, days 31–180
- 0
- Confidence
- 80.0%
Polls
Partial
Coverage is partial and no record is currently available for this section.
source_not_registeredForecasts
Partial
Coverage is partial and no record is currently available for this section.
forecast_not_computedTop issues
Stale
The available record is stale; no current value is published.
one_or_more_blocks_partialPrediction components
Partial
Coverage is partial and no record is currently available for this section.
forecast_not_computedMedia profile
Approval · Favorability · Negativity
Unavailable due to licence
The registered licence does not permit republication of this section.
license_or_attribution_rejectedMedia profile
Unavailable due to licence
The registered licence does not permit republication of this section.
license_or_attribution_rejectedStrengths · Weaknesses · Attacks · Controversies
Unavailable due to licence
The registered licence does not permit republication of this section.
license_or_attribution_rejectedCampaign signals
Unavailable due to licence
The registered licence does not permit republication of this section.
license_or_attribution_rejectedElectoral history
Japan — Parliamentary election — 2021-10-31 · Social Democratic Party
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 1,018,588
- Seats
- 0
- Original value
- 1.77
- Published precision
- 2
Published share1.8%
Japan — Parliamentary election — 2017-10-22 · 社会民主党 (Social Democratic Party)
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 941,324
- Seats
- 2
- Original value
- 1.69
- Published precision
- 2
Published share1.7%
Japan — Parliamentary election — 2014-12-14 · Social Democratic Party (SDP)
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 1,314,441
- Seats
- 2
- Original value
- 2.46
- Published precision
- 2
Published share2.5%
Japan — Parliamentary election — 2012-12-16 · Social Democratic Party
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 1,420,790
- Seats
- 2
- Original value
- 2.40
- Published precision
- 2
Published share2.4%
Japan — Parliamentary election — 1946-04-10 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 10,069,907
- Seats
- 96
- Original value
- 18.20
- Published precision
- 2
Published share18.2%
Japan — Parliamentary election — 1947-04-25 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 7,176,882
- Seats
- 143
- Original value
- 26.20
- Published precision
- 2
Published share26.2%
Japan — Parliamentary election — 1949-01-23 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 4,129,794
- Seats
- 48
- Original value
- 13.50
- Published precision
- 2
Published share13.5%
Japan — Parliamentary election — 1986-07-06 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 10,412,584
- Seats
- 85
- Original value
- 17.23
- Published precision
- 2
Published share17.2%
Japan — Parliamentary election — 1996-10-20 · SDJP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 3,547,244
- Seats
- 15
- Original value
- 6.38
- Published precision
- 2
Published share6.4%
Japan — Parliamentary election — 1976-12-05 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 11,713,009
- Seats
- 123
- Original value
- 20.69
- Published precision
- 2
Published share20.7%
Japan — Parliamentary election — 1979-10-07 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 10,643,450
- Seats
- 107
- Original value
- 19.71
- Published precision
- 2
Published share19.7%
Japan — Parliamentary election — 1967-01-29 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 12,899,132
- Seats
- 141
- Original value
- 28.00
- Published precision
- 2
Published share28.0%
Japan — Parliamentary election — 2000-06-25 · SDP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 5,603,680
- Seats
- 19
- Original value
- 9.36
- Published precision
- 2
Published share9.4%
Japan — Parliamentary election — 1960-11-20 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 10,839,130
- Seats
- 144
- Original value
- 27.40
- Published precision
- 2
Published share27.4%
Japan — Parliamentary election — 1980-06-22 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 11,400,747
- Seats
- 107
- Original value
- 19.30
- Published precision
- 2
Published share19.3%
Japan — Parliamentary election — 1990-02-18 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 16,025,473
- Seats
- 136
- Original value
- 24.35
- Published precision
- 2
Published share24.4%
Japan — Parliamentary election — 2003-11-09 · SDJP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 3,027,390
- Seats
- 6
- Original value
- 5.10
- Published precision
- 2
Published share5.1%
Japan — Parliamentary election — 1993-07-18 · SDJP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 9,687,588
- Seats
- 70
- Original value
- 15.43
- Published precision
- 2
Published share15.4%
Japan — Parliamentary election — 1958-05-22 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 13,155,715
- Seats
- 167
- Original value
- 33.10
- Published precision
- 2
Published share33.1%
Japan — Parliamentary election — 1963-11-21 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 11,906,766
- Seats
- 144
- Original value
- 29.00
- Published precision
- 2
Published share29.0%
Japan — Parliamentary election — 2005-09-11 · Social Democratic Party (SDPJ)
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 3,719,522
- Seats
- 7
- Original value
- 5.49
- Published precision
- 2
Published share5.5%
Japan — Parliamentary election — 1983-12-18 · JSP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 11,065,082
- Seats
- 112
- Original value
- 19.49
- Published precision
- 2
Published share19.5%
Japan — Parliamentary election — 2009-08-30 · Social Democratic Party (SDP)
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 3,006,160
- Seats
- 7
- Original value
- 4.27
- Published precision
- 2
Published share4.3%
Japan — Parliamentary election — 1972-12-10 · SP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 11,478,742
- Seats
- 118
- Original value
- 21.90
- Published precision
- 2
Published share21.9%
Japan — Parliamentary election — 1969-12-27 · SP
Round 1 · Aug 15, 2024 · Preliminary
- Votes
- 10,074,101
- Seats
- 90
- Original value
- 21.44
- Published precision
- 2
Published share21.4%
Sources
3
- 1WikidataCC0-1.0 · Aug 9, 2026
- 2Wikimedia CommonsPER-FILE · Aug 9, 2026
- 3Unicode Common Locale Data RepositoryUnicode-3.0 · Aug 9, 2026
