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

Office briefing

Don Matias — Mayor

Tracked current office. Identifiers stay separate from display names.

Colombia · Don Matias / Antioquia · municipal · MayorCO-ALC-05237

Read the complete original research briefing

Expected ordinary election on the last Sunday of October; formal call and 2027 roster require refresh. CEDE/Registraduría ordinary returns V2. Shares exclude blank and invalid ballots. Changing coalition labels and current control are not harmonized. Repeats, annulments and opposition-seat acceptance require certification review.

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

Geography
Don Matias / Antioquia
Next election
2027-10-31
Linked upcoming event
next-2a391a5a8d1122c39012f0f8
Registry qualification
Unknown

2. How certain is that date?

2027-10-31 is expected (not formally called). Day precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2023

Ordinary · Legal certification not established · list votes

  • PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE51.5%
  • PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U21.5%
  • PARTIDO CONSERVADOR COLOMBIANO16.6%
  • CREEMOS7.7%
  • PARTIDO ALIANZA VERDE2.8%
Results for event-132dca46daad76e7ddff2eaa
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE · Javier Dario Lopez Restrepo20130001colombia/Sdc3a3f1f89/20234,59351.5%UnknownRecorded
PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U · Yudy Marcela Peña Correa20050002colombia/Sdc3a3f1f89/20231,91921.5%UnknownRecorded
PARTIDO CONSERVADOR COLOMBIANO · Jaime Andres Vanegas Sepulveda18490002colombia/Sdc3a3f1f89/20231,47916.6%UnknownRecorded
CREEMOS · Libardo Alfonso Yepes Ramirez20150003colombia/Sdc3a3f1f89/20236857.7%UnknownRecorded
PARTIDO ALIANZA VERDE · Hernando Cuervo Tafur20090002colombia/Sdc3a3f1f89/20232462.8%UnknownRecorded

2019

Ordinary · Legal certification not established · list votes

  • COALICION ALCALDIA DE DON MATIAS-ANT. PARTIDO DE LA U - PARTIDO ALIANZA VERDE Y ALIANZA SOCIAL INDEPENDIENTE - "ALCALDIA DONMATIAS"41.6%
  • COALICION ALCALDIA DE DON MATIAS-ANT. PARTIDO CONSERVADOR Y PARTIDO CENTRO DEMOCRATICO38.5%
  • PARTIDO CAMBIO RADICAL COLOMBIANO19.9%
Results for event-a520b0e72f07a34d3b049c70
Label / candidateParty codeVotesShareSeatsStatus
COALICION ALCALDIA DE DON MATIAS-ANT. PARTIDO DE LA U - PARTIDO ALIANZA VERDE Y ALIANZA SOCIAL INDEPENDIENTE - "ALCALDIA DONMATIAS" · Yeison Camilo Correa Alvarez20190473colombia/S67eb704c85/20194,02841.6%UnknownRecorded
COALICION ALCALDIA DE DON MATIAS-ANT. PARTIDO CONSERVADOR Y PARTIDO CENTRO DEMOCRATICO · Javier Dario Lopez Restrepo20190104colombia/S67eb704c85/20193,73238.5%UnknownRecorded
PARTIDO CAMBIO RADICAL COLOMBIANO · Diana Girlesa Muñoz Lopez20030001colombia/S67eb704c85/20191,92319.9%UnknownRecorded

2015

Ordinary · Legal certification not established · list votes

  • PARTIDO ALIANZA SOCIAL INDEPENDIENTE - ASI65.0%
  • PARTIDO CONSERVADOR COLOMBIANO34.6%
  • PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE0.4%
Results for event-5ed6ffd1cf1c6a962cea12fb
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO ALIANZA SOCIAL INDEPENDIENTE - ASI · Yudy Marcela Peña Correa19910006colombia/S8164286948/20155,76165%UnknownRecorded
PARTIDO CONSERVADOR COLOMBIANO · Paula Andrea Pemberthy Ruiz18490002colombia/S8164286948/20153,07134.6%UnknownRecorded
PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE · Andres Felipe Osorio Macias20130001colombia/S8164286948/2015330.4%UnknownRecorded

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=29.970858551894196, oldest_gap=30.344049633389737, previous_gap=3.056903852111951

pedersen volatility

Provisional volatility

92.32percentage points

Grouped Pedersen lower bound (percentage points). Ten exact standalone national-party labels. Mixed coalitions, unidentified CEDE codes and other lists stay Other. Changes in coalition participation are not resolved into constituent-party votes. Geographic and actual-event audits remain open. 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=["Conservador","Liberal","La U","Cambio Radical","Centro Democratico","Alianza Verde","ASI","MAIS","Polo","AICO","Other"], interval=Latest interval, vectors=[[16.577000672494957,0,21.508630351939026,0,51.47948890383322,2.757229320780094,0,0,0,0,7.677650750952701],[0,0,0,19.85954766084891,0,0,0,0,0,0,80.1404523391511],[34.64184997179921,0,0,0,0.37225042301184436,0,64.98589960518895,0,0,0,0]]

pedersen volatility

Provisional volatility

100percentage points

Grouped Pedersen lower bound (percentage points). Ten exact standalone national-party labels. Mixed coalitions, unidentified CEDE codes and other lists stay Other. Changes in coalition participation are not resolved into constituent-party votes. Geographic and actual-event audits remain open. 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=["Conservador","Liberal","La U","Cambio Radical","Centro Democratico","Alianza Verde","ASI","MAIS","Polo","AICO","Other"], interval=Previous interval, vectors=[[16.577000672494957,0,21.508630351939026,0,51.47948890383322,2.757229320780094,0,0,0,0,7.677650750952701],[0,0,0,19.85954766084891,0,0,0,0,0,0,80.1404523391511],[34.64184997179921,0,0,0,0.37225042301184436,0,64.98589960518895,0,0,0,0]]

pedersen volatility

Provisional volatility

96.16percentage points

Grouped Pedersen lower bound (percentage points). Ten exact standalone national-party labels. Mixed coalitions, unidentified CEDE codes and other lists stay Other. Changes in coalition participation are not resolved into constituent-party votes. Geographic and actual-event audits remain open. 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=["Conservador","Liberal","La U","Cambio Radical","Centro Democratico","Alianza Verde","ASI","MAIS","Polo","AICO","Other"], interval=Both intervals mean, vectors=[[16.577000672494957,0,21.508630351939026,0,51.47948890383322,2.757229320780094,0,0,0,0,7.677650750952701],[0,0,0,19.85954766084891,0,0,0,0,0,0,80.1404523391511],[34.64184997179921,0,0,0,0.37225042301184436,0,64.98589960518895,0,0,0,0]]

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.

No officeholder observation supplied.

6. Polling context

No local poll supplied.

National context is listed on the polling page. It is not a local forecast.

7. Unresolved issues and sources

Expected ordinary election on the last Sunday of October; formal call and 2027 roster require refresh. CEDE/Registraduría ordinary returns V2. Shares exclude blank and invalid ballots. Changing coalition labels and current control are not harmonized. Repeats, annulments and opposition-seat acceptance require certification review. Six 2023 assemblies remain absent: Amazonas, Guainía, Huila, Risaralda, Vaupés and Vichada. Cali’s 37 JAL boards and dated membership rosters are registered; the national JAL register, three-cycle votes and replacement-event final returns remain incomplete. Twenty mixed-list-type histories, Bogotá and Cali 2015 partial counts and candidate/elected-flag inconsistencies require reconciliation. The national historical portal rejected this browser through security screening. Full legal seat allocation is separate from candidate flags and directory headcounts.

    Sources

    Cite this record

    Center for Digital Democracy. “Don Matias — Mayor.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CO-ALC-05237. Sources: colombia--url-44e0af24e3fef22401f2d269, colombia--url-f8cbad13a2c7112410d7a492, colombia--url-142631271ac95a7106b17681, colombia--Sdc3a3f1f89, colombia--S67eb704c85, colombia--S8164286948.