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

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Office briefing

MERCEDES — Syndic and district council — shared ballot

Tracked current office. Identifiers stay separate from display names.

Costa Rica · MERCEDES / ALAJUELA · other · Syndic and district council — shared ballotCR-D-ALAJUELA-ATENAS-MERCEDES

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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
MERCEDES / ALAJUELA
Next election
2028-02-06
Linked upcoming event
next-ec776686daa61edf1e22750d
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 DEMOCRÁTICO36.4%
  • UNIDAD SOCIAL CRISTIANA20.3%
  • AQUÍ COSTA RICA MANDA10.4%
  • REPUBLICANO SOCIAL CRISTIANO10.1%
  • LIBERACIÓN NACIONAL8.6%
  • LIBERAL PROGRESISTA6.8%
  • NUEVA REPÚBLICA3.7%
  • NUEVA GENERACIÓN3.7%
Results for event-ba8d518acc6883167ea96e4a
Label / candidateParty codeVotesShareSeatsStatus
PROGRESO SOCIAL DEMOCRÁTICOcosta-rica/Sc1df243471/202445836.4%3Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/Sc1df243471/202425620.3%1Recorded
AQUÍ COSTA RICA MANDAcosta-rica/Sc1df243471/202413110.4%1Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/Sc1df243471/202412710.1%0 (recorded zero)Recorded
LIBERACIÓN NACIONALcosta-rica/Sc1df243471/20241088.6%0 (recorded zero)Recorded
LIBERAL PROGRESISTAcosta-rica/Sc1df243471/2024866.8%0 (recorded zero)Recorded
NUEVA REPÚBLICAcosta-rica/Sc1df243471/2024473.7%0 (recorded zero)Recorded
NUEVA GENERACIÓNcosta-rica/Sc1df243471/2024463.7%0 (recorded zero)Recorded

2020-02-02

Ordinary · Legal certification not established · list votes

  • UNIDAD SOCIAL CRISTIANA42.6%
  • UNIÓN ATENIENSE17.0%
  • LIBERACIÓN NACIONAL12.8%
  • NUEVA REPÚBLICA8.1%
  • NUEVA GENERACIÓN7.0%
  • ACCIÓN CIUDADANA4.7%
  • REPUBLICANO SOCIAL CRISTIANO4.1%
  • UNIDOS PODEMOS3.7%
Results for event-40f4fbbf25f1cfcd830df3b0
Label / candidateParty codeVotesShareSeatsStatus
UNIDAD SOCIAL CRISTIANAcosta-rica/Sfa91292290/202053942.6%3Recorded
UNIÓN ATENIENSEcosta-rica/Sfa91292290/202021517%1Recorded
LIBERACIÓN NACIONALcosta-rica/Sfa91292290/202016212.8%1Recorded
NUEVA REPÚBLICAcosta-rica/Sfa91292290/20201028.1%0 (recorded zero)Recorded
NUEVA GENERACIÓNcosta-rica/Sfa91292290/2020897%0 (recorded zero)Recorded
ACCIÓN CIUDADANAcosta-rica/Sfa91292290/2020604.7%0 (recorded zero)Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/Sfa91292290/2020524.1%0 (recorded zero)Recorded
UNIDOS PODEMOScosta-rica/Sfa91292290/2020473.7%0 (recorded zero)Recorded

2016-02-07

Ordinary · Legal certification not established · list votes

  • UNIDAD SOCIAL CRISTIANA39.2%
  • ACCIÓN CIUDADANA29.4%
  • LIBERACIÓN NACIONAL15.0%
  • REPUBLICANO SOCIAL CRISTIANO10.0%
  • FRENTE AMPLIO3.5%
  • MOVIMIENTO LIBERTARIO2.9%
Results for event-3c29a4b3108ed1a248a85a79
Label / candidateParty codeVotesShareSeatsStatus
UNIDAD SOCIAL CRISTIANAcosta-rica/S79669f3e5d/201641039.2%3Recorded
ACCIÓN CIUDADANAcosta-rica/S79669f3e5d/201630729.4%2Recorded
LIBERACIÓN NACIONALcosta-rica/S79669f3e5d/201615715%0 (recorded zero)Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/S79669f3e5d/201610410%0 (recorded zero)Recorded
FRENTE AMPLIOcosta-rica/S79669f3e5d/2016373.5%0 (recorded zero)Recorded
MOVIMIENTO LIBERTARIOcosta-rica/S79669f3e5d/2016302.9%0 (recorded zero)Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

8.550–100 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=16.044479745830024, oldest_gap=9.85645933014354, previous_gap=25.59241706161137

pedersen volatility

Provisional volatility

49.19percentage 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=[[8.57823669579031,20.33359809372518,0,0,0,3.733121525019857,0,0,0,10.087370929308975,6.830818109610802,36.3780778395552,14.058776806989673],[12.796208530805687,42.57503949447077,4.739336492890995,0,0,8.056872037914692,0,0,0,4.107424960505529,0,0,27.725118483412324],[15.023923444976077,39.23444976076555,29.37799043062201,3.54066985645933,0,0,2.8708133971291865,0,0,9.952153110047847,0,0,0]]

pedersen volatility

Provisional volatility

39.12percentage 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=[[8.57823669579031,20.33359809372518,0,0,0,3.733121525019857,0,0,0,10.087370929308975,6.830818109610802,36.3780778395552,14.058776806989673],[12.796208530805687,42.57503949447077,4.739336492890995,0,0,8.056872037914692,0,0,0,4.107424960505529,0,0,27.725118483412324],[15.023923444976077,39.23444976076555,29.37799043062201,3.54066985645933,0,0,2.8708133971291865,0,0,9.952153110047847,0,0,0]]

pedersen volatility

Provisional volatility

44.16percentage 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=[[8.57823669579031,20.33359809372518,0,0,0,3.733121525019857,0,0,0,10.087370929308975,6.830818109610802,36.3780778395552,14.058776806989673],[12.796208530805687,42.57503949447077,4.739336492890995,0,0,8.056872037914692,0,0,0,4.107424960505529,0,0,27.725118483412324],[15.023923444976077,39.23444976076555,29.37799043062201,3.54066985645933,0,0,2.8708133971291865,0,0,9.952153110047847,0,0,0]]

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?
MARIA MAYELA SAENZ ROJASSINDICATURA PROPIETARIA2024PROGRESO SOCIAL DEMOCRÁTICOprincipal
JORGE LUIS CASTRO MIRANDASINDICATURA SUPLENTE2024PROGRESO SOCIAL DEMOCRÁTICOsubstitute
JULIO CESAR CHAVES GODINEZCONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024PROGRESO SOCIAL DEMOCRÁTICOprincipal
GABRIELA CHASSOUL DUARTECONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024PROGRESO SOCIAL DEMOCRÁTICOprincipal
RANDY JOSUE RODRIGUEZ GONZALEZCONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024UNIDAD SOCIAL CRISTIANAprincipal
FERNANDO ENRIQUE CUBERO CAMPOSCONCEJALÍAS DE DISTRITO PROPIETARIOS(AS)2024AQUÍ COSTA RICA MANDAprincipal
SEBASTIAN MORERA ALPIZARCONCEJALÍAS DE DISTRITO SUPLENTES2024PROGRESO SOCIAL DEMOCRÁTICOsubstitute
ANA MERCEDES MASIS PEREZCONCEJALÍAS DE DISTRITO SUPLENTES2024PROGRESO SOCIAL DEMOCRÁTICOsubstitute
LEONARDO JOSE VARGAS GONZALEZCONCEJALÍAS DE DISTRITO SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
DIDIER DANILO RAMOS CORDEROCONCEJALÍAS DE DISTRITO SUPLENTES2024AQUÍ COSTA RICA MANDAsubstitute
DIDIER MORA CHAVESSÍNDICOS(AS) PROPIETARIO2020UNIDAD SOCIAL CRISTIANAprincipal
IDALIE RODRIGUEZ VIQUEZSÍNDICOS(AS) SUPLENTE2020UNIDAD SOCIAL CRISTIANAsubstitute
ALVARO ROJAS CUBEROCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
YAMILETH ALPIZAR MUÑOZCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
VALENTIN VILLARREAL CAMPOSCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020UNIÓN ATENIENSEprincipal
PABLO ALONSO BOGANTES VARGASCONCEJALES DE DISTRITO PROPIETARIOS(AS)2020LIBERACIÓN NACIONALprincipal
JOSE ENRIQUE VARGAS BARRIOSCONCEJALES DE DISTRITO SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
DAMARIS CECILIA OVARES BRENESCONCEJALES DE DISTRITO SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
FABIAN RODRIGUEZ BARRIOSCONCEJALES DE DISTRITO SUPLENTES2020UNIÓN ATENIENSEsubstitute
LUZ ELENA GATGENS AVILACONCEJALES DE DISTRITO SUPLENTES2020LIBERACIÓN NACIONALsubstitute
IDALIE RODRIGUEZ VIQUEZSÍNDICOS(AS) PROPIETARIA2016UNIDAD SOCIAL CRISTIANAprincipal
DIDIER MORA CHAVESSÍNDICOS(AS) SUPLENTE2016UNIDAD SOCIAL CRISTIANAsubstitute
MARCELO LOPEZ LEONCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016UNIDAD SOCIAL CRISTIANAprincipal
YOJANA AGUILAR SUAREZCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016UNIDAD SOCIAL CRISTIANAprincipal
LUIS GUILLERMO SOLANO LORIACONCEJALES DE DISTRITO PROPIETARIOS(AS)2016ACCIÓN CIUDADANAprincipal
ROCIO PEREZ FERNANDEZCONCEJALES DE DISTRITO PROPIETARIOS(AS)2016ACCIÓN CIUDADANAprincipal
ALAN OCONITRILLO BOGANTESCONCEJALES DE DISTRITO SUPLENTES2016UNIDAD SOCIAL CRISTIANAsubstitute
NATALIA SUAREZ SIBAJACONCEJALES DE DISTRITO SUPLENTES2016UNIDAD SOCIAL CRISTIANAsubstitute
DAVID BOGANTES LEDEZMACONCEJALES DE DISTRITO SUPLENTES2016ACCIÓN CIUDADANAsubstitute
GLORIA GUEVARA BERMUDEZCONCEJALES 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. “MERCEDES — Syndic and district council — shared ballot.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CR-D-ALAJUELA-ATENAS-MERCEDES. Sources: costa-rica--url-ae6cfb21525f974d8912a00e, costa-rica--url-9b0bf8940eb485b811da317e, costa-rica--url-f8a1e09c9e89a7e5e9c55114, costa-rica--Sc1df243471, costa-rica--S51b819559c, costa-rica--Sfa91292290, costa-rica--S4f56e4854d, costa-rica--S79669f3e5d, costa-rica--S0287240cf5.