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

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Office briefing

LOS RIOS — Municipal council

Tracked current office. Identifiers stay separate from display names.

Dominican Republic · LOS RIOS / BAHORUCO · municipal · Municipal councilDO-C-LOS-RIOS

Read the complete original research briefing

Definitive 2024 vote vectors and seat allocations joined. March 2020 replaces the annulled February poll. Earlier council ballot basis, special events and boundary comparability require review.

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

Geography
LOS RIOS / BAHORUCO
Next election
2028-02-20
Linked upcoming event
next-7ef3b28c69e9bb22d2a8ba92
Registry qualification
Unknown

2. How certain is that date?

2028-02-20 is expected (not formally called). Day precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2024-02-18

Ordinary · Legal certification not established · unknown

  • PARTIDO REVOLUCIONARIO MODERNO Y ALIADOS47.3%
  • PARTIDO FUERZA DEL PUEBLO Y ALIADOS25.5%
  • PARTIDO DE LA LIBERACION DOMINICANA Y ALIADOS23.4%
  • PARTIDO PAIS POSIBLE3.8%
Results for event-c7772e227cf70f1ca3e5b2dd
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO REVOLUCIONARIO MODERNO Y ALIADOSPRMdominican-republic/S84db1edb1b/20241,28647.3%3Recorded
PARTIDO FUERZA DEL PUEBLO Y ALIADOSFPdominican-republic/S84db1edb1b/202469225.5%1Recorded
PARTIDO DE LA LIBERACION DOMINICANA Y ALIADOSPLDdominican-republic/S84db1edb1b/202463623.4%1Recorded
PARTIDO PAIS POSIBLEPPdominican-republic/S84db1edb1b/20241033.8%0 (recorded zero)Recorded

2020-03-15

Repeated / replacement · Legal certification not established · list votes

  • PARTIDO REVOLUCIONARIO MODERNO Y ALIADOS49.9%
  • PARTIDO DE LA LIBERACION DOMINICANA Y ALIADOS49.6%
  • PARTIDO REFORMISTA SOCIAL CRISTIANO0.5%
Results for event-a6c96556762cf8de9bb77321
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO REVOLUCIONARIO MODERNO Y ALIADOSdominican-republic/S9e2090ae02/20201,32349.9%3Recorded
PARTIDO DE LA LIBERACION DOMINICANA Y ALIADOSdominican-republic/S9e2090ae02/20201,31749.6%2Recorded
PARTIDO REFORMISTA SOCIAL CRISTIANOdominican-republic/S9e2090ae02/2020130.5%0 (recorded zero)Recorded

2016-05-15

Ordinary · Legal certification not established · list votes

  • PARTIDO DE LA LIBERACION DOMINICANA Y ALIADOS55.2%
  • PARTIDO REVOLUCIONARIO MODERNO Y ALIADOS44.5%
  • PARTIDO UNION DEMOCRATA CRISTIANA0.1%
  • FUERZA NACIONAL PROGRESISTA0.1%
  • PARTIDO QUISQUEYANO DEMOCRATA CRISTIANO0.0%
Results for event-b4e8f2f219df9d96c7d07b03
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO DE LA LIBERACION DOMINICANA Y ALIADOSdominican-republic/Se0c865c342/20162,21955.2%3Recorded
PARTIDO REVOLUCIONARIO MODERNO Y ALIADOSdominican-republic/Se0c865c342/20161,78844.5%2Recorded
PARTIDO UNION DEMOCRATA CRISTIANAdominican-republic/Se0c865c342/201660.1%0 (recorded zero)Recorded
FUERZA NACIONAL PROGRESISTAdominican-republic/Se0c865c342/201650.1%0 (recorded zero)Recorded
PARTIDO QUISQUEYANO DEMOCRATA CRISTIANOdominican-republic/Se0c865c342/201620%0 (recorded zero)Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

28.710–100 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=21.86234817813765, oldest_gap=10.721393034825873, previous_gap=0.22615906520919538

pedersen volatility

Withheld volatility

Unknownpercentage points

Not calculated: comparable fixed party grouping unavailable

Comparison status: Latest interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=[], interval=Latest interval, vectors=[]

pedersen volatility

Withheld volatility

Unknownpercentage points

Not calculated: comparable fixed party grouping unavailable

Comparison status: Previous interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=[], interval=Previous interval, vectors=[]

pedersen volatility

Withheld volatility

Unknownpercentage points

Not calculated: comparable fixed party grouping unavailable

Comparison status: Both intervals mean · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=[], interval=Both intervals mean, vectors=[]

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?
MARTINES SENA PEREZREGIDOR2024PARTIDO REVOLUCIONARIO MODERNOunknown
WAGNER ARIOSTO PEREZ MATOSREGIDOR2024PARTIDO FUERZA DEL PUEBLOunknown
JARLIN DANIEL DIAZ MENDEZREGIDOR2024PARTIDO REVOLUCIONARIO MODERNOunknown
LAUDRIS LITUANIA SENA FERRERASREGIDOR2024PARTIDO DE LA LIBERACION DOMINICANAunknown
MARTIRES RAQUEL SEGURA MATOSREGIDOR2024PARTIDO REVOLUCIONARIO MODERNOunknown

6. Polling context

No local poll supplied.

7. Unresolved issues and sources

No open research issues attached to this office.

Sources

Cite this record

Center for Digital Democracy. “LOS RIOS — Municipal council.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/DO-C-LOS-RIOS. Sources: dominican-republic--url-9eeae531a9324c0e31187d6e, dominican-republic--url-6036685c5a67c6ca3aeb4de9, dominican-republic--url-7fe13efce2166a5693351268, dominican-republic--S84db1edb1b, dominican-republic--Se3e95bc895, dominican-republic--S9e2090ae02, dominican-republic--Se0c865c342, dominican-republic--S777101bcbc.