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

Office briefing

NANDAYURE — Municipal council

Tracked current office. Identifiers stay separate from display names.

Costa Rica · NANDAYURE / GUANACASTE · municipal · Municipal councilCR-C-GUANACASTE-NANDAYURE

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
NANDAYURE / GUANACASTE
Next election
2028-02-06
Linked upcoming event
next-8fc5edd6b696303f6f1d3bf8
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 CRISTIANA52.8%
  • NANDAYURE PROGRESA14.3%
  • UNIÓN GUANACASTECA14.3%
  • LIBERACIÓN NACIONAL13.6%
  • PUEBLO SOBERANO3.7%
  • AQUÍ COSTA RICA MANDA1.3%
Results for event-c29fba8e07f5cc2b9928f7c4
Label / candidateParty codeVotesShareSeatsStatus
UNIDAD SOCIAL CRISTIANAcosta-rica/Sc1df243471/20242,72052.8%2Recorded
NANDAYURE PROGRESAcosta-rica/Sc1df243471/202473714.3%1Recorded
UNIÓN GUANACASTECAcosta-rica/Sc1df243471/202473714.3%1Recorded
LIBERACIÓN NACIONALcosta-rica/Sc1df243471/202469913.6%1Recorded
PUEBLO SOBERANOcosta-rica/Sc1df243471/20241923.7%0 (recorded zero)Recorded
AQUÍ COSTA RICA MANDAcosta-rica/Sc1df243471/2024661.3%0 (recorded zero)Recorded

2020-02-02

Ordinary · Legal certification not established · list votes

  • NANDAYURE PROGRESA30.9%
  • LIBERACIÓN NACIONAL23.3%
  • UNIDAD SOCIAL CRISTIANA21.4%
  • RESTAURACIÓN NACIONAL8.9%
  • NUEVA REPUBLICA8.8%
  • UNIDOS PODEMOS5.8%
  • FRENTE AMPLIO0.8%
Results for event-bd9688dd1eb0c867dd599d99
Label / candidateParty codeVotesShareSeatsStatus
NANDAYURE PROGRESAcosta-rica/Sfa91292290/20201,65130.9%2Recorded
LIBERACIÓN NACIONALcosta-rica/Sfa91292290/20201,24723.3%2Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/Sfa91292290/20201,14621.4%1Recorded
RESTAURACIÓN NACIONALcosta-rica/Sfa91292290/20204748.9%0 (recorded zero)Recorded
NUEVA REPUBLICAcosta-rica/Sfa91292290/20204728.8%0 (recorded zero)Recorded
UNIDOS PODEMOScosta-rica/Sfa91292290/20203095.8%0 (recorded zero)Recorded
FRENTE AMPLIOcosta-rica/Sfa91292290/2020450.8%0 (recorded zero)Recorded

2016-02-07

Ordinary · Legal certification not established · list votes

  • LIBERACIÓN NACIONAL30.4%
  • NUEVA GENERACIÓN25.3%
  • FRENTE AMPLIO21.7%
  • ACCIÓN CIUDADANA15.1%
  • UNIDAD SOCIAL CRISTIANA4.2%
  • REPUBLICANO SOCIAL CRISTIANO3.2%
Results for event-ae7827bead1a866562a923ca
Label / candidateParty codeVotesShareSeatsStatus
LIBERACIÓN NACIONALcosta-rica/S79669f3e5d/20161,39730.4%2Recorded
NUEVA GENERACIÓNcosta-rica/S79669f3e5d/20161,16425.3%1Recorded
FRENTE AMPLIOcosta-rica/S79669f3e5d/201699621.7%1Recorded
ACCIÓN CIUDADANAcosta-rica/S79669f3e5d/201669515.1%1Recorded
UNIDAD SOCIAL CRISTIANAcosta-rica/S79669f3e5d/20161944.2%0 (recorded zero)Recorded
REPUBLICANO SOCIAL CRISTIANOcosta-rica/S79669f3e5d/20161493.2%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=38.497379149679674, oldest_gap=5.070729053318825, previous_gap=7.5598802395209574

pedersen volatility

Provisional volatility

31.36percentage 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=[[13.570180547466512,52.805280528052805,0,0,0,0,0,0,0,0,0,0,33.62453892448068],[23.334580838323355,21.444610778443113,0,0.8420658682634731,8.869760479041917,8.832335329341317,0,0,0,0,0,0,36.67664670658683],[30.40261153427639,4.221980413492927,15.12513601741023,21.675734494015234,0,0,0,0,0,3.2426550598476607,0,0,25.331882480957564]]

pedersen volatility

Provisional volatility

46.27percentage 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=[[13.570180547466512,52.805280528052805,0,0,0,0,0,0,0,0,0,0,33.62453892448068],[23.334580838323355,21.444610778443113,0,0.8420658682634731,8.869760479041917,8.832335329341317,0,0,0,0,0,0,36.67664670658683],[30.40261153427639,4.221980413492927,15.12513601741023,21.675734494015234,0,0,0,0,0,3.2426550598476607,0,0,25.331882480957564]]

pedersen volatility

Provisional volatility

38.82percentage 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=[[13.570180547466512,52.805280528052805,0,0,0,0,0,0,0,0,0,0,33.62453892448068],[23.334580838323355,21.444610778443113,0,0.8420658682634731,8.869760479041917,8.832335329341317,0,0,0,0,0,0,36.67664670658683],[30.40261153427639,4.221980413492927,15.12513601741023,21.675734494015234,0,0,0,0,0,3.2426550598476607,0,0,25.331882480957564]]

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?
KARLA TATIANA BALTODANO SEQUEIRAREGIDURÍAS PROPIETARIAS2024UNIDAD SOCIAL CRISTIANAprincipal
JOHAN TALI SALINAS ROSALESREGIDURÍAS PROPIETARIAS2024UNIDAD SOCIAL CRISTIANAprincipal
GEORGINA QUESADA BRENESREGIDURÍAS PROPIETARIAS2024NANDAYURE PROGRESAprincipal
ELSA GABRIELA TORRES MONTIELREGIDURÍAS PROPIETARIAS2024UNIÓN GUANACASTECAprincipal
PEDRO ANDRES MESEN FERNANDEZREGIDURÍAS PROPIETARIAS2024LIBERACIÓN NACIONALprincipal
NURIA REYES QUIROSREGIDURÍAS SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
WAGNER BORBON CAMBRONEROREGIDURÍAS SUPLENTES2024UNIDAD SOCIAL CRISTIANAsubstitute
YOSELYN TATIANA CAMBRONERO MORAREGIDURÍAS SUPLENTES2024NANDAYURE PROGRESAsubstitute
MAUREN VANESSA RODRIGUEZ CRUZREGIDURÍAS SUPLENTES2024UNIÓN GUANACASTECAsubstitute
CARLOS MORERA PERALTAREGIDURÍAS SUPLENTES2024LIBERACIÓN NACIONALsubstitute
MANUEL ALEXANDER URBINA GARITAREGIDORES(AS) PROPIETARIOS(AS)2020NANDAYURE PROGRESAprincipal
JOSEFA RODRIGUEZ JIMENEZREGIDORES(AS) PROPIETARIOS(AS)2020NANDAYURE PROGRESAprincipal
JUAN MIGUEL ALVARADO ALVARADOREGIDORES(AS) PROPIETARIOS(AS)2020LIBERACIÓN NACIONALprincipal
XIOMARA DE LOS ANGELES MAYORGA MENAREGIDORES(AS) PROPIETARIOS(AS)2020LIBERACIÓN NACIONALprincipal
DELIA MARIA LOBO SALAZARREGIDORES(AS) PROPIETARIOS(AS)2020UNIDAD SOCIAL CRISTIANAprincipal
MARIA NURY JIMENEZ RODRIGUEZREGIDORES(AS) SUPLENTES2020NANDAYURE PROGRESAsubstitute
ERICK ARROYO VILLEGASREGIDORES(AS) SUPLENTES2020NANDAYURE PROGRESAsubstitute
VIVIEN MORA BRENESREGIDORES(AS) SUPLENTES2020LIBERACIÓN NACIONALsubstitute
FELIX CORTES GOMEZREGIDORES(AS) SUPLENTES2020LIBERACIÓN NACIONALsubstitute
NURIA REYES QUIROSREGIDORES(AS) SUPLENTES2020UNIDAD SOCIAL CRISTIANAsubstitute
RODRIGO BALTODANO PERALTAREGIDORES(AS) PROPIETARIOS(AS)2016LIBERACIÓN NACIONALprincipal
ANGIE PAOLA BADILLA MARTINEZREGIDORES(AS) PROPIETARIOS(AS)2016LIBERACIÓN NACIONALprincipal
EMILIANO GERARDO MATA CHAVARRIAREGIDORES(AS) PROPIETARIOS(AS)2016NUEVA GENERACIÓNprincipal
EDWIN JIMENEZ SIBAJAREGIDORES(AS) PROPIETARIOS(AS)2016FRENTE AMPLIOprincipal
MARTA EUGENIA CASTRO HERNANDEZREGIDORES(AS) PROPIETARIOS(AS)2016ACCIÓN CIUDADANAprincipal
MINOR CORDERO UMAÑAREGIDORES(AS) SUPLENTES2016LIBERACIÓN NACIONALsubstitute
ALEJANDRA DE LOS ANGELES MOJARRO ARGUEDASREGIDORES(AS) SUPLENTES2016LIBERACIÓN NACIONALsubstitute
CARMEN MARIA QUIROS ARIASREGIDORES(AS) SUPLENTES2016NUEVA GENERACIÓNsubstitute
YEIMY DANIELA GOMEZ HERNANDEZREGIDORES(AS) SUPLENTES2016FRENTE AMPLIOsubstitute
ULISES RODRIGUEZ ALVARADOREGIDORES(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. “NANDAYURE — Municipal council.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CR-C-GUANACASTE-NANDAYURE. Sources: costa-rica--url-ae6cfb21525f974d8912a00e, costa-rica--url-9b0bf8940eb485b811da317e, costa-rica--url-f8a1e09c9e89a7e5e9c55114, costa-rica--Sc1df243471, costa-rica--Sff26e7e948, costa-rica--Sfa91292290, costa-rica--S27ffa9d02e, costa-rica--S79669f3e5d, costa-rica--S8b1b44e150.