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

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Office briefing

SAN MIGUEL — Syndic and district council — shared ballot

Tracked current office. Identifiers stay separate from display names.

Costa Rica · SAN MIGUEL / HEREDIA · other · Syndic and district council — shared ballotCR-D-HEREDIA-SANTO-DOMINGO-SAN-MIGUEL

Read the complete original research briefing

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 MIGUEL / HEREDIA
Next election
2028-02-06
Linked upcoming event
next-4b847db5d2ea68e3367b2779
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

  • PROGRESO SOCIAL DEMOCRÁTICO26.3%
  • LIBERACIÓN NACIONAL25.7%
  • MOVIMIENTO AVANCE SANTO DOMINGO13.8%
  • UNIDAD SOCIAL CRISTIANA11.4%
  • UNIÓN DOMINGUEÑA10.9%
  • NUEVA REPÚBLICA6.6%
  • LIBERAL PROGRESISTA3.7%
  • JUSTICIA SOCIAL COSTARRICENSE1.6%
Results for event-f0c0835f5255efed653329b2
Label / candidateParty codeVotesShareSeatsStatus
PROGRESO SOCIAL DEMOCRÁTICOcosta-rica/Sc1df243471/202448026.3%1Recorded
LIBERACIÓN NACIONALcosta-rica/Sc1df243471/202446825.7%1Recorded
MOVIMIENTO AVANCE SANTO DOMINGOcosta-rica/Sc1df243471/202425113.8%1Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/Sc1df243471/202420711.4%1Recorded
UNIÓN DOMINGUEÑAcosta-rica/Sc1df243471/202419910.9%1Recorded
NUEVA REPÚBLICAcosta-rica/Sc1df243471/20241216.6%0 (recorded zero)Recorded
LIBERAL PROGRESISTAcosta-rica/Sc1df243471/2024673.7%0 (recorded zero)Recorded
JUSTICIA SOCIAL COSTARRICENSEcosta-rica/Sc1df243471/2024301.6%0 (recorded zero)Recorded

2020-02-02

Ordinary · Legal certification not established · list votes

  • MOVIMIENTO AVANCE SANTO DOMINGO39.2%
  • LIBERACIÓN NACIONAL30.1%
  • UNIÓN DOMINGUEÑA10.4%
  • UNIDAD SOCIAL CRISTIANA10.0%
  • UNIDOS PODEMOS7.1%
  • ACCIÓN CIUDADANA3.2%
Results for event-ec44b4851b909eb690f95314
Label / candidateParty codeVotesShareSeatsStatus
MOVIMIENTO AVANCE SANTO DOMINGOcosta-rica/Sfa91292290/202074139.2%3Recorded
LIBERACIÓN NACIONALcosta-rica/Sfa91292290/202056830.1%2Recorded
UNIÓN DOMINGUEÑAcosta-rica/Sfa91292290/202019710.4%0 (recorded zero)Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/Sfa91292290/202018810%0 (recorded zero)Recorded
UNIDOS PODEMOScosta-rica/Sfa91292290/20201347.1%0 (recorded zero)Recorded
ACCIÓN CIUDADANAcosta-rica/Sfa91292290/2020613.2%0 (recorded zero)Recorded

2016-02-07

Ordinary · Legal certification not established · list votes

  • MOVIMIENTO LIBERTARIO25.8%
  • ACCIÓN CIUDADANA24.6%
  • LIBERACIÓN NACIONAL21.6%
  • UNIDAD SOCIAL CRISTIANA14.4%
  • MOVIMIENTO AVANCE SANTO DOMINGO11.3%
  • NUEVA GENERACIÓN2.3%
Results for event-df67089dfe8374556a09313b
Label / candidateParty codeVotesShareSeatsStatus
MOVIMIENTO LIBERTARIOcosta-rica/S79669f3e5d/201643525.8%2Recorded
ACCIÓN CIUDADANAcosta-rica/S79669f3e5d/201641524.6%1Recorded
LIBERACIÓN NACIONALcosta-rica/S79669f3e5d/201636421.6%1Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/S79669f3e5d/201624214.4%1Recorded
MOVIMIENTO AVANCE SANTO DOMINGOcosta-rica/S79669f3e5d/201619111.3%0 (recorded zero)Recorded
NUEVA GENERACIÓNcosta-rica/S79669f3e5d/2016392.3%0 (recorded zero)Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

83.690–100 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=0.6582556226001088, oldest_gap=1.1862396204033239, previous_gap=9.158284806776074

pedersen volatility

Provisional volatility

38.05percentage 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=[[25.67196928140428,11.354909489851892,0,0,0,6.637410861217773,0,0,0,0,3.6752605595172794,26.33022490400439,26.330224904004393],[30.068819481206987,9.952355743779778,3.2292218104817363,0,0,0,0,0,0,0,0,0,56.7496029645315],[21.58956109134045,14.35349940688019,24.61447212336892,0,0,0,25.800711743772244,0,0,0,0,0,13.641755634638196]]

pedersen volatility

Provisional volatility

51.59percentage 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=[[25.67196928140428,11.354909489851892,0,0,0,6.637410861217773,0,0,0,0,3.6752605595172794,26.33022490400439,26.330224904004393],[30.068819481206987,9.952355743779778,3.2292218104817363,0,0,0,0,0,0,0,0,0,56.7496029645315],[21.58956109134045,14.35349940688019,24.61447212336892,0,0,0,25.800711743772244,0,0,0,0,0,13.641755634638196]]

pedersen volatility

Provisional volatility

44.82percentage 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=[[25.67196928140428,11.354909489851892,0,0,0,6.637410861217773,0,0,0,0,3.6752605595172794,26.33022490400439,26.330224904004393],[30.068819481206987,9.952355743779778,3.2292218104817363,0,0,0,0,0,0,0,0,0,56.7496029645315],[21.58956109134045,14.35349940688019,24.61447212336892,0,0,0,25.800711743772244,0,0,0,0,0,13.641755634638196]]

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?
JOSE MIGUEL MURILLO SALASSINDICATURAS PROPIETARIO2024PROGRESO SOCIAL DEMOCRÁTICOprincipal
BLANCA NIEVES CHACON VILLALOBOSSINDICATURAS SUPLENTE2024PROGRESO SOCIAL DEMOCRÁTICOsubstitute
ANA YANSIE SOLANO BENAVIDESCONCEJALÍAS DE DISTRITO PROPIETARIAS2024LIBERACIÓN NACIONALprincipal
ALVARO RODRIGUEZ CAMBRONEROCONCEJALÍAS DE DISTRITO PROPIETARIAS2024MOVIMIENTO AVANCE SANTO DOMINGOprincipal
CARLOS GUZMAN GAMBOACONCEJALÍAS DE DISTRITO PROPIETARIAS2024UNIDAD SOCIAL CRISTIANAprincipal
JEFFERSON AUGUSTO CHACON CASTILLOCONCEJALÍAS DE DISTRITO PROPIETARIAS2024UNIÓN DOMINGUEÑAprincipal
MILENA GUTIERREZ ROJASCONCEJALÍAS DE DISTRITO SUPLENTES2024LIBERACIÓN NACIONALsubstitute
GONZALO ARCE VILLALOBOSCONCEJALÍAS DE DISTRITO SUPLENTES2024MOVIMIENTO AVANCE SANTO DOMINGOsubstitute
JOSE GUILLERMO CALVO BARRIENTOSCONCEJALÍAS DE DISTRITO SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
DANIEL SOLANO SALASCONCEJALÍAS DE DISTRITO SUPLENTES2024UNIÓN DOMINGUEÑAsubstitute
NAUTILIO VARGAS UMAÑASÍNDICOS(AS) PROPIETARIO2020MOVIMIENTO AVANCE SANTO DOMINGOprincipal
PATRICIA VICTORIA RODRIGUEZ MARADIAGASÍNDICOS(AS) SUPLENTE2020MOVIMIENTO AVANCE SANTO DOMINGOsubstitute
DAVID ESTEBAN LARA CUBEROCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020MOVIMIENTO AVANCE SANTO DOMINGOprincipal
JACQUELINE MARIA CORDOBA REYESCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020MOVIMIENTO AVANCE SANTO DOMINGOprincipal
RONALD ALVAREZ CHACONCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020LIBERACIÓN NACIONALprincipal
EIVY GONZALEZ SANCHEZCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020LIBERACIÓN NACIONALprincipal
EMILIA GONZALEZ CHACONCONCEJALES DE DISTRITO SUPLENTES2020MOVIMIENTO AVANCE SANTO DOMINGOsubstitute
MICHAEL VILLALOBOS LEONCONCEJALES DE DISTRITO SUPLENTES2020MOVIMIENTO AVANCE SANTO DOMINGOsubstitute
MARIA EUGENIA SOTO ARAYACONCEJALES DE DISTRITO SUPLENTES2020LIBERACIÓN NACIONALsubstitute
DANNY ZUÑIGA CALVOCONCEJALES DE DISTRITO SUPLENTES2020LIBERACIÓN NACIONALsubstitute
NAUTILIO VARGAS UMAÑASÍNDICOS(AS) PROPIETARIO2016MOVIMIENTO LIBERTARIOprincipal
DARIA FELICIA ZAMORA MENDEZSÍNDICOS(AS) SUPLENTE2016MOVIMIENTO LIBERTARIOsubstitute
NANCY ALEJANDRA RETANA VARGASCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016MOVIMIENTO LIBERTARIOprincipal
GABRIELA SOTO ARAYACONCEJALES DE DISTRITO PROPIETARIOS(AS)2016ACCIÓN CIUDADANAprincipal
SIANNE BARAHONA DE LA OCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016LIBERACIÓN NACIONALprincipal
LUIS DIEGO GONZALEZ ESQUIVELCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016UNIDAD SOCIAL CRISTIANAprincipal
MICHAEL VILLALOBOS LEONCONCEJALES DE DISTRITO SUPLENTES2016MOVIMIENTO LIBERTARIOsubstitute
FRANKLIN SANCHEZ ZAMORACONCEJALES DE DISTRITO SUPLENTES2016ACCIÓN CIUDADANAsubstitute
ANTONIO GERARDO ARAYA ESPINOZACONCEJALES DE DISTRITO SUPLENTES2016LIBERACIÓN NACIONALsubstitute
MAURICIO ALBERTO QUESADA ARCECONCEJALES DE DISTRITO SUPLENTES2016UNIDAD SOCIAL CRISTIANAsubstitute

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 MIGUEL — Syndic and district council — shared ballot.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CR-D-HEREDIA-SANTO-DOMINGO-SAN-MIGUEL. Sources: costa-rica--url-ae6cfb21525f974d8912a00e, costa-rica--url-9b0bf8940eb485b811da317e, costa-rica--url-f8a1e09c9e89a7e5e9c55114, costa-rica--Sc1df243471, costa-rica--Sfded7b8dda, costa-rica--Sfa91292290, costa-rica--S4de1f90aaf, costa-rica--S79669f3e5d, costa-rica--S7911d2c9dc.