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

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Office briefing

SAN MATEO — Syndic and district council — shared ballot

Tracked current office. Identifiers stay separate from display names.

Costa Rica · SAN MATEO / ALAJUELA · other · Syndic and district council — shared ballotCR-D-ALAJUELA-SAN-MATEO-SAN-MATEO

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TSE vote books joined to official elected-member declarations where geographic and total checks reconcile. Substitutes retained separately. Subsequent replacements and current officeholder status require review.

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

Geography
SAN MATEO / ALAJUELA
Next election
2028-02-06
Linked upcoming event
next-ea8ca03dcaf7f401415e4ceb
Registry qualification
Unknown

2. How certain is that date?

2028-02-06 is expected (not formally called). Day precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2024-02-04

Ordinary · Legal certification not established · list votes

  • NUEVA REPÚBLICA27.8%
  • UNIDAD SOCIAL CRISTIANA23.3%
  • LIBERACIÓN NACIONAL22.8%
  • UNIDOS PODEMOS18.4%
  • PROGRESO SOCIAL DEMOCRÁTICO7.1%
  • REPUBLICANO SOCIAL CRISTIANO0.6%
Results for event-a7ddc655cc921e1c37ff4580
Label / candidateParty codeVotesShareSeatsStatus
NUEVA REPÚBLICAcosta-rica/Sc1df243471/202441927.8%2Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/Sc1df243471/202435123.3%1Recorded
LIBERACIÓN NACIONALcosta-rica/Sc1df243471/202434322.8%1Recorded
UNIDOS PODEMOScosta-rica/Sc1df243471/202427718.4%1Recorded
PROGRESO SOCIAL DEMOCRÁTICOcosta-rica/Sc1df243471/20241077.1%0 (recorded zero)Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/Sc1df243471/202490.6%0 (recorded zero)Recorded

2020-02-02

Ordinary · Legal certification not established · list votes

  • LIBERACIÓN NACIONAL53.0%
  • UNIDAD SOCIAL CRISTIANA37.7%
  • FRENTE AMPLIO7.7%
  • RESTAURACIÓN NACIONAL1.1%
  • UNIDOS PODEMOS0.5%
Results for event-57fbc3366fe965d31c22541e
Label / candidateParty codeVotesShareSeatsStatus
LIBERACIÓN NACIONALcosta-rica/Sfa91292290/202090153%3Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/Sfa91292290/202064137.7%2Recorded
FRENTE AMPLIOcosta-rica/Sfa91292290/20201317.7%0 (recorded zero)Recorded
RESTAURACIÓN NACIONALcosta-rica/Sfa91292290/2020191.1%0 (recorded zero)Recorded
UNIDOS PODEMOScosta-rica/Sfa91292290/202080.5%0 (recorded zero)Recorded

2016-02-07

Ordinary · Legal certification not established · list votes

  • LIBERACIÓN NACIONAL61.8%
  • ACCIÓN CIUDADANA18.6%
  • UNIDAD SOCIAL CRISTIANA9.3%
  • MOVIMIENTO LIBERTARIO3.6%
  • REPUBLICANO SOCIAL CRISTIANO3.5%
  • FRENTE AMPLIO3.3%
Results for event-38032b0c96936a8ef7c96640
Label / candidateParty codeVotesShareSeatsStatus
LIBERACIÓN NACIONALcosta-rica/S79669f3e5d/201685261.8%4Recorded
ACCIÓN CIUDADANAcosta-rica/S79669f3e5d/201625618.6%1Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/S79669f3e5d/20161289.3%0 (recorded zero)Recorded
MOVIMIENTO LIBERTARIOcosta-rica/S79669f3e5d/2016493.6%0 (recorded zero)Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/S79669f3e5d/2016483.5%0 (recorded zero)Recorded
FRENTE AMPLIOcosta-rica/S79669f3e5d/2016453.3%0 (recorded zero)Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

41.890–100 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=4.515272244355909, oldest_gap=43.2510885341074, previous_gap=15.294117647058826

pedersen volatility

Provisional volatility

53.45percentage points

Grouped Pedersen lower bound (percentage points). Twelve explicitly named standalone national parties; accent variants normalized. Local parties and coalitions remain Other. No alliance votes are attributed to individual member parties. 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

Method pedersen.grouped.v1. Inputs: groups=["PLN","PUSC","PAC","Frente Amplio","PRN","Nueva Republica","PML","PIN","PASE","PRSC","PLP","PPSD","Other"], interval=Latest interval, vectors=[[22.775564409030544,23.306772908366533,0,0,0,27.822045152722442,0,0,0,0.5976095617529881,0,7.104913678618858,18.393094289508632],[53,37.705882352941174,0,7.705882352941177,1.1176470588235294,0,0,0,0,0,0,0,0.47058823529411764],[61.828737300435414,9.288824383164005,18.57764876632801,3.265602322206096,0,0,3.555878084179971,0,0,3.483309143686502,0,0,0]]

pedersen volatility

Provisional volatility

34.45percentage points

Grouped Pedersen lower bound (percentage points). Twelve explicitly named standalone national parties; accent variants normalized. Local parties and coalitions remain Other. No alliance votes are attributed to individual member parties. 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

Method pedersen.grouped.v1. Inputs: groups=["PLN","PUSC","PAC","Frente Amplio","PRN","Nueva Republica","PML","PIN","PASE","PRSC","PLP","PPSD","Other"], interval=Previous interval, vectors=[[22.775564409030544,23.306772908366533,0,0,0,27.822045152722442,0,0,0,0.5976095617529881,0,7.104913678618858,18.393094289508632],[53,37.705882352941174,0,7.705882352941177,1.1176470588235294,0,0,0,0,0,0,0,0.47058823529411764],[61.828737300435414,9.288824383164005,18.57764876632801,3.265602322206096,0,0,3.555878084179971,0,0,3.483309143686502,0,0,0]]

pedersen volatility

Provisional volatility

43.95percentage points

Grouped Pedersen lower bound (percentage points). Twelve explicitly named standalone national parties; accent variants normalized. Local parties and coalitions remain Other. No alliance votes are attributed to individual member parties. 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

Method pedersen.grouped.v1. Inputs: groups=["PLN","PUSC","PAC","Frente Amplio","PRN","Nueva Republica","PML","PIN","PASE","PRSC","PLP","PPSD","Other"], interval=Both intervals mean, vectors=[[22.775564409030544,23.306772908366533,0,0,0,27.822045152722442,0,0,0,0.5976095617529881,0,7.104913678618858,18.393094289508632],[53,37.705882352941174,0,7.705882352941177,1.1176470588235294,0,0,0,0,0,0,0,0.47058823529411764],[61.828737300435414,9.288824383164005,18.57764876632801,3.265602322206096,0,0,3.555878084179971,0,0,3.483309143686502,0,0,0]]

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.

Officeholder observations
PersonRoleAs ofAffiliationPrincipal?
ENRIQUE SANABRIA CHAVESSINDICATURA PROPIETARIO2024NUEVA REPÚBLICAprincipal
LORENA PATRICIA ROJAS FERNANDEZSINDICATURA SUPLENTE2024NUEVA REPÚBLICAsubstitute
MARITZA ALVAREZ SANDICONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024NUEVA REPÚBLICAprincipal
YAHAIRA ANDREA CUBERO MOSCOSOCONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024UNIDAD SOCIAL CRISTIANAprincipal
MARIE PAOLA MORA CASTILLOCONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024LIBERACIÓN NACIONALprincipal
CARMEN LORENA VARGAS ARGUEDASCONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024UNIDOS PODEMOSprincipal
ANA CECILIA GALLO HERNANDEZCONCEJALÍAS DE DISTRITO SUPLENTES2024NUEVA REPÚBLICAsubstitute
MARCELA SANDI RODRIGUEZCONCEJALÍAS DE DISTRITO SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
MABEL SALAS CASTILLOCONCEJALÍAS DE DISTRITO SUPLENTES2024LIBERACIÓN NACIONALsubstitute
MONICA MARIA MORALES CASTILLOCONCEJALÍAS DE DISTRITO SUPLENTES2024UNIDOS PODEMOSsubstitute
LAURA MARIA VALVERDE CHAVARRIASÍNDICOS(AS) PROPIETARIA2020LIBERACIÓN NACIONALprincipal
OSCAR MANUEL QUESADA RODRIGUEZSÍNDICOS(AS) SUPLENTE2020LIBERACIÓN NACIONALsubstitute
JOSE DAVID UMAÑA VASQUEZCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020LIBERACIÓN NACIONALprincipal
BERENICE VERONICA GONZALEZ VILLALOBOSCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020LIBERACIÓN NACIONALprincipal
KEVIN ANDRES ZUÑIGA PIEDRACONCEJALES DE DISTRITO PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
DEBORAH DE JESUS OSES ACOSTACONCEJALES DE DISTRITO PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
PRISCILLA MARIA OVARES GRANADOSCONCEJALES DE DISTRITO SUPLENTES2020LIBERACIÓN NACIONALsubstitute
CARLOS MARTIN VARGAS QUESADACONCEJALES DE DISTRITO SUPLENTES2020LIBERACIÓN NACIONALsubstitute
ALAIN RACHITH ZUÑIGA CORREACONCEJALES DE DISTRITO SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
DIANA MARIA ESPINOZA AGUILARCONCEJALES DE DISTRITO SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
ALEXANDER JOSUE BADILLA RODRIGUEZSÍNDICOS(AS) PROPIETARIO2016LIBERACIÓN NACIONALprincipal
MARIA DE LOS ANGELES BEJARANO ACOSTASÍNDICOS(AS) SUPLENTE2016LIBERACIÓN NACIONALsubstitute
JORGE EDUARDO VARGAS ALVAREZCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016LIBERACIÓN NACIONALprincipal
WALBERTO MORA CASTILLOCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016LIBERACIÓN NACIONALprincipal
INGRID ARTAVIA GONZALEZCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016LIBERACIÓN NACIONALprincipal
KENNETH STEPHEN RIVERA VILLALOBOSCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016ACCIÓN CIUDADANAprincipal
MARIANELA SIMONI ARROYOCONCEJALES DE DISTRITO SUPLENTES2016LIBERACIÓN NACIONALsubstitute
ADOLFO VARGAS GUZMANCONCEJALES DE DISTRITO SUPLENTES2016LIBERACIÓN NACIONALsubstitute
YORLENI DELGADO HIDALGOCONCEJALES DE DISTRITO SUPLENTES2016LIBERACIÓN NACIONALsubstitute
NESTOR JOSE RODRIGUEZ CRUZCONCEJALES DE DISTRITO SUPLENTES2016ACCIÓN CIUDADANAsubstitute

6. Polling context

No local poll supplied.

7. Unresolved issues and sources

  • other · open

    Published province heading correction: {"issue": "Published province heading correction", "year": 2020, "area": "Heredia", "source_id": "S41377daad8", "resolution": "The amendment corrects CARTAGO to HEREDIA in the second table heading. It changes no votes, winners or seats; the original declaration is joined to Heredia."}

Sources

Cite this record

Center for Digital Democracy. “SAN MATEO — Syndic and district council — shared ballot.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CR-D-ALAJUELA-SAN-MATEO-SAN-MATEO. Sources: costa-rica--url-ae6cfb21525f974d8912a00e, costa-rica--url-9b0bf8940eb485b811da317e, costa-rica--url-f8a1e09c9e89a7e5e9c55114, costa-rica--Sc1df243471, costa-rica--Sd0f291679f, costa-rica--Sfa91292290, costa-rica--S1c89820e7a, costa-rica--S79669f3e5d, costa-rica--Sa126c8cb1f.