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

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Office briefing

TARRAZÚ — Municipal council

Tracked current office. Identifiers stay separate from display names.

Costa Rica · TARRAZÚ / SAN JOSÉ · municipal · Municipal councilCR-C-SAN-JOSE-TARRAZU

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
TARRAZÚ / SAN JOSÉ
Next election
2028-02-06
Linked upcoming event
next-ecfedcc31723f3c9af742b66
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

  • UNIDAD SOCIAL CRISTIANA58.5%
  • LIBERACIÓN NACIONAL41.5%
Results for event-78f805a78ebbe00694612393
Label / candidateParty codeVotesShareSeatsStatus
UNIDAD SOCIAL CRISTIANAcosta-rica/Sc1df243471/20242,65558.5%3Recorded
LIBERACIÓN NACIONALcosta-rica/Sc1df243471/20241,88241.5%2Recorded

2020-02-02

Ordinary · Legal certification not established · list votes

  • UNIDAD SOCIAL CRISTIANA54.0%
  • NUEVA GENERACIÓN16.7%
  • LIBERACIÓN NACIONAL9.8%
  • REPUBLICANO SOCIAL CRISTIANO9.4%
  • FRENTE AMPLIO5.4%
  • TARRAZÚ PRIMERO3.6%
  • RESTAURACIÓN NACIONAL1.1%
Results for event-c177c186a4e81167ad05da9a
Label / candidateParty codeVotesShareSeatsStatus
UNIDAD SOCIAL CRISTIANAcosta-rica/Sfa91292290/20202,87254%3Recorded
NUEVA GENERACIÓNcosta-rica/Sfa91292290/202088716.7%2Recorded
LIBERACIÓN NACIONALcosta-rica/Sfa91292290/20205219.8%0 (recorded zero)Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/Sfa91292290/20205019.4%0 (recorded zero)Recorded
FRENTE AMPLIOcosta-rica/Sfa91292290/20202895.4%0 (recorded zero)Recorded
TARRAZÚ PRIMEROcosta-rica/Sfa91292290/20201903.6%0 (recorded zero)Recorded
RESTAURACIÓN NACIONALcosta-rica/Sfa91292290/2020591.1%0 (recorded zero)Recorded

2016-02-07

Ordinary · Legal certification not established · list votes

  • UNIDAD SOCIAL CRISTIANA26.7%
  • LIBERACIÓN NACIONAL26.2%
  • REPUBLICANO SOCIAL CRISTIANO19.6%
  • FRENTE AMPLIO12.2%
  • ACCIÓN CIUDADANA11.9%
  • MOVIMIENTO LIBERTARIO2.4%
  • NUEVA GENERACIÓN0.9%
Results for event-2e849480ee53eeb91854260e
Label / candidateParty codeVotesShareSeatsStatus
UNIDAD SOCIAL CRISTIANAcosta-rica/S79669f3e5d/20161,20326.7%1Recorded
LIBERACIÓN NACIONALcosta-rica/S79669f3e5d/20161,18026.2%1Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/S79669f3e5d/201688119.6%1Recorded
FRENTE AMPLIOcosta-rica/S79669f3e5d/201655012.2%1Recorded
ACCIÓN CIUDADANAcosta-rica/S79669f3e5d/201653511.9%1Recorded
MOVIMIENTO LIBERTARIOcosta-rica/S79669f3e5d/20161102.4%0 (recorded zero)Recorded
NUEVA GENERACIÓNcosta-rica/S79669f3e5d/2016400.9%0 (recorded zero)Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

0 (recorded zero)0–100 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=17.03769010359268, oldest_gap=0.5112247166036887, previous_gap=37.31904493325813

pedersen volatility

Provisional volatility

36.21percentage 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=[[41.48115494820366,58.51884505179634,0,0,0,0,0,0,0,0,0,0,0],[9.795074262079337,53.995111863132166,0,5.433352133859748,1.1092310584696372,0,0,0,0,9.419063733784546,0,0,20.248166948674562],[26.22805067792843,26.739275394532118,11.891531451433652,12.224938875305623,0,0,2.444987775061125,0,0,19.58212936208046,0,0,0.8890864636585908]]

pedersen volatility

Provisional volatility

47.72percentage 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=[[41.48115494820366,58.51884505179634,0,0,0,0,0,0,0,0,0,0,0],[9.795074262079337,53.995111863132166,0,5.433352133859748,1.1092310584696372,0,0,0,0,9.419063733784546,0,0,20.248166948674562],[26.22805067792843,26.739275394532118,11.891531451433652,12.224938875305623,0,0,2.444987775061125,0,0,19.58212936208046,0,0,0.8890864636585908]]

pedersen volatility

Provisional volatility

41.97percentage 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=[[41.48115494820366,58.51884505179634,0,0,0,0,0,0,0,0,0,0,0],[9.795074262079337,53.995111863132166,0,5.433352133859748,1.1092310584696372,0,0,0,0,9.419063733784546,0,0,20.248166948674562],[26.22805067792843,26.739275394532118,11.891531451433652,12.224938875305623,0,0,2.444987775061125,0,0,19.58212936208046,0,0,0.8890864636585908]]

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?
KEISY DANIELA GUTIERREZ VALVERDEREGIDURÍAS PROPIETARIAS2024UNIDAD SOCIAL CRISTIANAprincipal
CARLOS LUIS ABARCA CRUZREGIDURÍAS PROPIETARIAS2024UNIDAD SOCIAL CRISTIANAprincipal
MELANIA CHAVES CHANTOREGIDURÍAS PROPIETARIAS2024UNIDAD SOCIAL CRISTIANAprincipal
KAROL TATIANA NAVARRO MONGEREGIDURÍAS PROPIETARIAS2024LIBERACIÓN NACIONALprincipal
WILMER ALVARADO FONSECAREGIDURÍAS PROPIETARIAS2024LIBERACIÓN NACIONALprincipal
MARIA VICTORIA NARANJO ABARCAREGIDURÍAS SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
JUAN DIEGO BLANCO VALVERDEREGIDURÍAS SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
KAREN LIZETH VARGAS NAVARROREGIDURÍAS SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
MARIA ROSARIO UMAÑA RETANAREGIDURÍAS SUPLENTES2024LIBERACIÓN NACIONALsubstitute
ISAAC FACUNDO MADRIGAL VARGASREGIDURÍAS SUPLENTES2024LIBERACIÓN NACIONALsubstitute
CARLOS LUIS ABARCA CRUZREGIDORES(AS) PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
EIDA MONTERO CORDEROREGIDORES(AS) PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
JUAN CARLOS SANCHEZ UREÑAREGIDORES(AS) PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
HENRY UREÑA BONILLAREGIDORES(AS) PROPIETARIOS(AS)2020NUEVA GENERACIÓNprincipal
MILADY ABARCA JIMENEZREGIDORES(AS) PROPIETARIOS(AS)2020NUEVA GENERACIÓNprincipal
VANESSA MORA VEGAREGIDORES(AS) SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
ELIECER ZAMORA MONGEREGIDORES(AS) SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
KEISY DANIELA GUTIERREZ VALVERDEREGIDORES(AS) SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
MICHELLE LINETH QUESADA BLANCOREGIDORES(AS) SUPLENTES2020NUEVA GENERACIÓNsubstitute
ASDRUBAL NARANJO BLANCOREGIDORES(AS) SUPLENTES2020NUEVA GENERACIÓNsubstitute
EIDA MONTERO CORDEROREGIDORES(AS) PROPIETARIOS(AS)2016UNIDAD SOCIAL CRISTIANAprincipal
MARCO ANTONIO VARGAS VALVERDEREGIDORES(AS) PROPIETARIOS(AS)2016LIBERACIÓN NACIONALprincipal
ALVARO ROJAS MONTEROREGIDORES(AS) PROPIETARIOS(AS)2016REPUBLICANO SOCIAL CRISTIANOprincipal
JORGE GODINEZ MORAREGIDORES(AS) PROPIETARIOS(AS)2016FRENTE AMPLIOprincipal
JUAN CARLOS SANCHEZ UREÑAREGIDORES(AS) PROPIETARIOS(AS)2016ACCIÓN CIUDADANAprincipal
MILEIDY VALVERDE FALLASREGIDORES(AS) SUPLENTES2016UNIDAD SOCIAL CRISTIANAsubstitute
ANA PATRICIA UREÑA MIRANDAREGIDORES(AS) SUPLENTES2016LIBERACIÓN NACIONALsubstitute
MARIA EDUVINA CHINCHILLA BORBONREGIDORES(AS) SUPLENTES2016REPUBLICANO SOCIAL CRISTIANOsubstitute
ZAHIRA TORRES SOLANOREGIDORES(AS) SUPLENTES2016FRENTE AMPLIOsubstitute
VANESSA MORA VEGAREGIDORES(AS) 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. “TARRAZÚ — Municipal council.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CR-C-SAN-JOSE-TARRAZU. Sources: costa-rica--url-ae6cfb21525f974d8912a00e, costa-rica--url-9b0bf8940eb485b811da317e, costa-rica--url-f8a1e09c9e89a7e5e9c55114, costa-rica--Sc1df243471, costa-rica--See87eff563, costa-rica--Sfa91292290, costa-rica--S2be00cb1cf, costa-rica--S79669f3e5d, costa-rica--S6bb1784b3c.