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Partial researchResearch snapshot 2026-09-13. Evidence gaps remain; see Coverage for requirements.

Office briefing

Santa Fe — Senate

Tracked current office. Identifiers stay separate from display names.

Argentina · Santa Fe / Santa Fe · regional · SenateAR-SF-S

Read the complete original research briefing

Formal 2027 polling date is pending. Law 14,436 governs the 2027 transition. Local choices about council structure can remain open until 30 November 2026. Official votes and elected rosters are retained. Council counts describe elected cohorts. Current governing membership and later replacements require verification.

1. What office, where, and when is the next election?

Geography
Santa Fe / Santa Fe
Next election
2027; formal call pending
Linked upcoming event
next-b225a0e9a67ffc3e197bd360
Registry qualification
Unknown

2. How certain is that date?

2027; formal call pending is expected (not formally called). Year precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2023-09-10

Ordinary · Legal certification not established · list votes

  • UNIDOS PARA CAMBIAR SANTA FE51.6%
  • JUNTOS AVANCEMOS36.1%
  • VIVA LA LIBERTAD4.5%
  • FRENTE DE IZQUIERDA Y DE TRABAJADORES -3.1%
  • COALICION CIVICA - ARI2.5%
  • PRIMERO SANTA FE1.1%
  • UNITE POR LA LIBERTAD Y LA DIGNIDAD0.6%
  • FRENTE AMPLIO POR LA SOBERANIA0.3%
  • DEMOCRATA CRISTIANO0.2%
  • ESCUCHARTE0.1%
Results for event-3cad94ad14d15e5e41f5d8a1
Label / candidateParty codeVotesShareSeatsStatus
UNIDOS PARA CAMBIAR SANTA FE102argentina/Sd5731ccd0603/2023890,84651.6%13Recorded
JUNTOS AVANCEMOS83argentina/Sd5731ccd0603/2023623,82636.1%5Recorded
VIVA LA LIBERTAD38argentina/Sd5731ccd0603/202376,9304.5%0 (recorded zero)Recorded
FRENTE DE IZQUIERDA Y DE TRABAJADORES -95argentina/Sd5731ccd0603/202353,0983.1%0 (recorded zero)Recorded
COALICION CIVICA - ARI71argentina/Sd5731ccd0603/202344,0092.5%0 (recorded zero)Recorded
PRIMERO SANTA FE32argentina/Sd5731ccd0603/202318,5581.1%0 (recorded zero)Recorded
UNITE POR LA LIBERTAD Y LA DIGNIDAD65argentina/Sd5731ccd0603/202310,6780.6%1Recorded
FRENTE AMPLIO POR LA SOBERANIA105argentina/Sd5731ccd0603/20235,3560.3%0 (recorded zero)Recorded
DEMOCRATA CRISTIANO29argentina/Sd5731ccd0603/20233,0050.2%0 (recorded zero)Recorded
ESCUCHARTE89argentina/Sd5731ccd0603/20231,7650.1%0 (recorded zero)Recorded

2019-06-16

Ordinary · Legal certification not established · list votes

  • JUNTOS42.5%
  • FRENTE PROGRESISTA, CIVICO Y SOCIAL35.1%
  • CAMBIEMOS17.2%
  • UNITE POR LA FAMILIA Y LA VIDA1.5%
  • FRENTE DE IZQUIERDA Y DE LOS TRABAJADORES1.5%
  • FRENTE SOCIAL Y POPULAR1.4%
  • UNIDOS0.5%
  • ESPACIO GRANDE0.2%
  • UNION POR LA LIBERTAD0.1%
  • ALTERNATIVA FEDERAL0.1%
Results for event-248b4da81b904a354c2760f0
Label / candidateParty codeVotesShareSeatsStatus
JUNTOS40argentina/Sf3a1f8fa36ef/2019743,09542.5%11Recorded
FRENTE PROGRESISTA, CIVICO Y SOCIAL16argentina/Sf3a1f8fa36ef/2019614,47235.1%7Recorded
CAMBIEMOS44argentina/Sf3a1f8fa36ef/2019301,58517.2%1Recorded
UNITE POR LA FAMILIA Y LA VIDA20argentina/Sf3a1f8fa36ef/201926,3651.5%0 (recorded zero)Recorded
FRENTE DE IZQUIERDA Y DE LOS TRABAJADORES43argentina/Sf3a1f8fa36ef/201926,1941.5%0 (recorded zero)Recorded
FRENTE SOCIAL Y POPULAR27argentina/Sf3a1f8fa36ef/201924,0011.4%0 (recorded zero)Recorded
UNIDOS63argentina/Sf3a1f8fa36ef/20198,2060.5%0 (recorded zero)Recorded
ESPACIO GRANDE48argentina/Sf3a1f8fa36ef/20193,0660.2%0 (recorded zero)Recorded
UNION POR LA LIBERTAD60argentina/Sf3a1f8fa36ef/20192,0200.1%0 (recorded zero)Recorded
ALTERNATIVA FEDERAL58argentina/Sf3a1f8fa36ef/20191,3420.1%0 (recorded zero)Recorded

2015-06-14

Ordinary · Legal certification not established · list votes

  • FRENTE PROGRESISTA CIVICO Y SOCIAL41.5%
  • FRENTE JUSTICIALISTA PARA LA VICTORIA26.8%
  • UNION PRO FEDERAL17.1%
  • FRENTE RENOVADOR DE LA ESPERANZA4.3%
  • FRENTE DE IZQUIERDA Y DE LOS TRABAJADORES4.0%
  • PARTIDO UNION CELESTE Y BLANCO3.0%
  • FRENTE SOCIAL Y POPULAR3.0%
  • MOV. INDEPENDIENTE, JUSTICIA Y DIGNIDAD0.2%
  • FRENTE DE LA CULTURA, LA EDUCACIÓN Y EL TRABAJO0.2%
Results for event-d298f45662638379c293e160
Label / candidateParty codeVotesShareSeatsStatus
FRENTE PROGRESISTA CIVICO Y SOCIAL6argentina/Sc0e75086631b/2015736,87741.5%8Recorded
FRENTE JUSTICIALISTA PARA LA VICTORIA4argentina/Sc0e75086631b/2015475,64326.8%8Recorded
UNION PRO FEDERAL5argentina/Sc0e75086631b/2015304,60417.1%0 (recorded zero)Recorded
FRENTE RENOVADOR DE LA ESPERANZA8argentina/Sc0e75086631b/201576,7314.3%0 (recorded zero)Recorded
FRENTE DE IZQUIERDA Y DE LOS TRABAJADORES1argentina/Sc0e75086631b/201570,6054%0 (recorded zero)Recorded
PARTIDO UNION CELESTE Y BLANCO9argentina/Sc0e75086631b/201553,4143%3Recorded
FRENTE SOCIAL Y POPULAR3argentina/Sc0e75086631b/201552,5663%0 (recorded zero)Recorded
MOV. INDEPENDIENTE, JUSTICIA Y DIGNIDAD7argentina/Sc0e75086631b/20153,4850.2%0 (recorded zero)Recorded
FRENTE DE LA CULTURA, LA EDUCACIÓN Y EL TRABAJO2argentina/Sc0e75086631b/20152,7710.2%0 (recorded zero)Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

35.270–100 historical closeness

Actual-event and/or comparability review incomplete

Comparison status: Provisional imported-series comparison; actual-event review open

Method ci.weighted-gap.v1. Inputs: latest_gap=15.451911408732627, oldest_gap=14.70335949425225, previous_gap=7.348432824138769

pedersen volatility

Withheld volatility

Unknownpercentage points

Grouped Pedersen lower bound (percentage points). Nine exact standalone party-name categories in the archived returns; accents normalized. Provincial alliances and renamed coalitions remain Other. A category records its published name, not a verified legal succession or inferred allocation of alliance votes. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Latest interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PARTIDO JUSTICIALISTA","UNION CIVICA RADICAL","PARTIDO SOCIALISTA","PRO - PROPUESTA REPUBLICANA","COALICION CIVICA - AFIRMACION PARA UNA REPUBLICA IGUALITARIA","GEN","PARTIDO OBRERO","PARTIDO DE LOS TRABAJADORES SOCIALISTAS","MOVIMIENTO SOCIALISTA DE LOS TRABAJADORES","Other"], interval=Latest interval, vectors=[null,null,null]

pedersen volatility

Withheld volatility

Unknownpercentage points

Grouped Pedersen lower bound (percentage points). Nine exact standalone party-name categories in the archived returns; accents normalized. Provincial alliances and renamed coalitions remain Other. A category records its published name, not a verified legal succession or inferred allocation of alliance votes. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Previous interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PARTIDO JUSTICIALISTA","UNION CIVICA RADICAL","PARTIDO SOCIALISTA","PRO - PROPUESTA REPUBLICANA","COALICION CIVICA - AFIRMACION PARA UNA REPUBLICA IGUALITARIA","GEN","PARTIDO OBRERO","PARTIDO DE LOS TRABAJADORES SOCIALISTAS","MOVIMIENTO SOCIALISTA DE LOS TRABAJADORES","Other"], interval=Previous interval, vectors=[null,null,null]

pedersen volatility

Withheld volatility

Unknownpercentage points

Grouped Pedersen lower bound (percentage points). Nine exact standalone party-name categories in the archived returns; accents normalized. Provincial alliances and renamed coalitions remain Other. A category records its published name, not a verified legal succession or inferred allocation of alliance votes. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Both intervals mean · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PARTIDO JUSTICIALISTA","UNION CIVICA RADICAL","PARTIDO SOCIALISTA","PRO - PROPUESTA REPUBLICANA","COALICION CIVICA - AFIRMACION PARA UNA REPUBLICA IGUALITARIA","GEN","PARTIDO OBRERO","PARTIDO DE LOS TRABAJADORES SOCIALISTAS","MOVIMIENTO SOCIALISTA DE LOS TRABAJADORES","Other"], interval=Both intervals mean, vectors=[null,null,null]

Source-reported control: Unverified. Current tenure requires separate dated evidence.

5. Officeholder evidence

Dated roster observations are not automatically current tenure. The source current-office flag means this office is tracked now, not that the last winner still holds it.

No officeholder observation supplied.

6. Polling context

No local poll supplied.

National context is listed on the polling page. It is not a local forecast.

7. Unresolved issues and sources

Formal 2027 polling date is pending. Law 14,436 governs the 2027 transition. Local choices about council structure can remain open until 30 November 2026. Official votes and elected rosters are retained. Council counts describe elected cohorts. Current governing membership and later replacements require verification. Missing older local results in several provincial datasets, full seat proclamations, intervened/replacement contests and dated coalition control. Many municipalities vote separately from provincial election day. Final 2027 calls remain subject to official publication. Ten Catamarca 2023 local returns now have primary provisional counts; final certification and older cycles are still missing. DINE 2015 download has no Catamarca local records. Entre Ríos final national consultation warns that foreign-voter tables are excluded. Neuquén final-file links returned access-denied responses; several older links point to private or defunct hosts.

  • other · open

    2019 locality result empty: {"issue": "2019 locality result empty", "name": "Distrito Tala-Sarandí", "code": "0079C"}

  • other · open

    Earlier same-election publication superseded: {"id": "AR-TU-D-OESTE", "year": 2019, "issue": "Earlier same-election publication superseded", "selected_publication": "2019-07-02", "discarded_publications": ["2019-06-15"]}

  • other · open

    Archive navigation year differs from date printed in source: {"file": "ar_formosa_2017_archivo_542.pdf", "issue": "Archive navigation year differs from date printed in source", "navigation_year": 2017, "source_date": "2019-06-16"}

Sources

Cite this record

Center for Digital Democracy. “Santa Fe — Senate.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/AR-SF-S. Sources: argentina--url-c59a56523176464d6aa95c66, argentina--url-5f87e101c11beb3c13ee782c, argentina--url-584fb423a33bbd4d2384c593, argentina--url-d7161d241341725861e1307d, argentina--Sd5731ccd0603, argentina--Sf3a1f8fa36ef, argentina--Sc0e75086631b.