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

Office briefing

Zaragoza — Mayor

Tracked current office. Identifiers stay separate from display names.

Colombia · Zaragoza / Antioquia · municipal · MayorCO-ALC-05895

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
Zaragoza / Antioquia
Next election
2027-10-31
Linked upcoming event
next-8b500e9d99b42fc4b5b44b42
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

  • COALICION PARTIDO LIBERAL Y PARTIDO DE LA U46.7%
  • ZARAGOZA, UNA DECISION NOS UNE34.9%
  • ZARAGOZA INSPIRA11.0%
  • FUERZA CIUDADANA LA FUERZA DEL CAMBIO6.5%
  • PARTIDO CAMBIO RADICAL COLOMBIANO1.0%
Results for event-e374ec287e87b8be8170eae7
Label / candidateParty codeVotesShareSeatsStatus
COALICION PARTIDO LIBERAL Y PARTIDO DE LA U · Andres Emilio Lujan Monroy20230455colombia/Sdc3a3f1f89/20235,24146.7%UnknownRecorded
ZARAGOZA, UNA DECISION NOS UNE · Alexader Silva Jaramillo20232340colombia/Sdc3a3f1f89/20233,91734.9%UnknownRecorded
ZARAGOZA INSPIRA · Daniel Eduardo Mendoza Zapata20232339colombia/Sdc3a3f1f89/20231,23111%UnknownRecorded
FUERZA CIUDADANA LA FUERZA DEL CAMBIO · Alvaro Enrique Chedid Amariz20150388colombia/Sdc3a3f1f89/20237306.5%UnknownRecorded
PARTIDO CAMBIO RADICAL COLOMBIANO · Marta Isabel Hernandez Gonzalez20030001colombia/Sdc3a3f1f89/20231081%UnknownRecorded

2019

Ordinary · Legal certification not established · list votes

  • COALICION ALCALDIA DE ZARAGOZA-ANT. PARTIDO CONSERVADOR - PARTIDO CENTRO DEMOCRATICO Y PARTIDO CAMBIO RADICAL55.2%
  • COALICION ALCALDIA DE ZARAGOZA-ANT. PARTIDO LIBERAL Y PARTIDO COLOMBIA RENACIENTE - "ZARAGOZA CUENTA CONMIGO"35.6%
  • PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U9.3%
Results for event-9a7ccea32d535d5a30120d90
Label / candidateParty codeVotesShareSeatsStatus
COALICION ALCALDIA DE ZARAGOZA-ANT. PARTIDO CONSERVADOR - PARTIDO CENTRO DEMOCRATICO Y PARTIDO CAMBIO RADICAL · Victor Dario Perlaza Hinestroza20190126colombia/S67eb704c85/20195,93955.2%UnknownRecorded
COALICION ALCALDIA DE ZARAGOZA-ANT. PARTIDO LIBERAL Y PARTIDO COLOMBIA RENACIENTE - "ZARAGOZA CUENTA CONMIGO" · Andres Emilio Lujan Monroy20190378colombia/S67eb704c85/20193,82635.6%UnknownRecorded
PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U · Alvaro Enrique Chedid Amariz20050002colombia/S67eb704c85/20199969.3%UnknownRecorded

2015

Ordinary · Legal certification not established · list votes

  • PARTIDO CAMBIO RADICAL COLOMBIANO51.3%
  • PARTIDO CONSERVADOR COLOMBIANO40.4%
  • PARTIDO ALIANZA SOCIAL INDEPENDIENTE - ASI8.3%
Results for event-d0b7933dbda5c2cd02ee0a46
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO CAMBIO RADICAL COLOMBIANO · Albeiro De Jesus Menoyos Alvarez20030001colombia/S8164286948/20155,30551.3%UnknownRecorded
PARTIDO CONSERVADOR COLOMBIANO · Victor Dario Perlaza Hinestroza18490002colombia/S8164286948/20154,17940.4%UnknownRecorded
PARTIDO ALIANZA SOCIAL INDEPENDIENTE - ASI · Juan Humberto Yali Sepulveda19910006colombia/S8164286948/20158588.3%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

29.720–100 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=11.792999020219114, oldest_gap=10.887642622316768, previous_gap=19.635721587213084

pedersen volatility

Provisional volatility

9.26percentage 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=[[0,0,0,0.9619666874498976,0,0,0,0,0,0,99.0380333125501],[0,0,9.255645386116532,0,0,0,0,0,0,0,90.74435461388347],[40.408044865596594,0,0,51.29568748791336,0,0,8.29626764649004,0,0,0,0]]

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=[[0,0,0,0.9619666874498976,0,0,0,0,0,0,99.0380333125501],[0,0,9.255645386116532,0,0,0,0,0,0,0,90.74435461388347],[40.408044865596594,0,0,51.29568748791336,0,0,8.29626764649004,0,0,0,0]]

pedersen volatility

Provisional volatility

54.63percentage 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=[[0,0,0,0.9619666874498976,0,0,0,0,0,0,99.0380333125501],[0,0,9.255645386116532,0,0,0,0,0,0,0,90.74435461388347],[40.408044865596594,0,0,51.29568748791336,0,0,8.29626764649004,0,0,0,0]]

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. “Zaragoza — Mayor.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CO-ALC-05895. Sources: colombia--url-44e0af24e3fef22401f2d269, colombia--url-f8cbad13a2c7112410d7a492, colombia--url-142631271ac95a7106b17681, colombia--Sdc3a3f1f89, colombia--S67eb704c85, colombia--S8164286948.