Office briefing
Buenos Aires — Mayor
Tracked current office. Identifiers stay separate from display names.
Colombia · Buenos Aires / Cauca · municipal · MayorCO-ALC-19110
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
- Buenos Aires / Cauca
- Next election
- 2027-10-31
- Linked upcoming event
- next-3e8100c2d75184206cdb5097
- 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
- MOVIMIENTO ALIANZA DEMOCRATICA AFROCOLOMBIANA - ADA - MOVIMIENTO ALIANZA DEMOCRATICA AMPLIA50.6%
- PARTIDO COLOMBIA RENACIENTE32.3%
- MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS15.5%
- MOVIMIENTO NUEVO LIBERALISMO1.5%
| Label / candidate | Party code | Votes | Share | Seats | Status |
|---|---|---|---|---|---|
| MOVIMIENTO ALIANZA DEMOCRATICA AFROCOLOMBIANA - ADA - MOVIMIENTO ALIANZA DEMOCRATICA AMPLIA · Pablo Cesar Peña | 20180047colombia/Sdc3a3f1f89/2023 | 4,984 | 50.6% | Unknown | Recorded |
| PARTIDO COLOMBIA RENACIENTE · Urdely Carabali Carbonero | 20180046colombia/Sdc3a3f1f89/2023 | 3,181 | 32.3% | Unknown | Recorded |
| MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS · Victor Hugo Solis Ambuila | 20130002colombia/Sdc3a3f1f89/2023 | 1,531 | 15.5% | Unknown | Recorded |
| MOVIMIENTO NUEVO LIBERALISMO · Esai Aponza Charrupi | 19790001colombia/Sdc3a3f1f89/2023 | 150 | 1.5% | Unknown | Recorded |
2019
Ordinary · Legal certification not established · list votes
- PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U50.8%
- PARTIDO LIBERAL COLOMBIANO42.5%
- MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS6.7%
| Label / candidate | Party code | Votes | Share | Seats | Status |
|---|---|---|---|---|---|
| PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U · Oscar Eduin Lopez Sanchez | 20050002colombia/S67eb704c85/2019 | 4,953 | 50.8% | Unknown | Recorded |
| PARTIDO LIBERAL COLOMBIANO · Adan Diaz Sandoval | 18480001colombia/S67eb704c85/2019 | 4,149 | 42.5% | Unknown | Recorded |
| MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS · Wiesner Cortes Mina | 20130002colombia/S67eb704c85/2019 | 650 | 6.7% | Unknown | Recorded |
2015
Ordinary · Legal certification not established · list votes
- PARTIDO CAMBIO RADICAL COLOMBIANO36.6%
- PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U33.3%
- PARTIDO LIBERAL COLOMBIANO30.1%
| Label / candidate | Party code | Votes | Share | Seats | Status |
|---|---|---|---|---|---|
| PARTIDO CAMBIO RADICAL COLOMBIANO · Urdely Carabali Carbonero | 20030001colombia/S8164286948/2015 | 3,275 | 36.6% | Unknown | Recorded |
| PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U · Oscar Eduin Lopez Sanchez | 20050002colombia/S8164286948/2015 | 2,975 | 33.3% | Unknown | Recorded |
| PARTIDO LIBERAL COLOMBIANO · Adan Diaz Sandoval | 18480001colombia/S8164286948/2015 | 2,691 | 30.1% | Unknown | Recorded |
4. Competition and volatility
competition index
Provisional imported-series CI31.020–100 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=18.31200487507617, oldest_gap=3.355329381500951, previous_gap=8.244462674323216
pedersen volatility
Provisional volatility93.33percentage 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=[[0,0,0,0,0,0,0,15.549461710339225,0,0,84.45053828966077],[0,42.54511894995898,50.7895816242822,0,0,0,0,6.6652994257588185,0,0,0],[0,30.097304552063527,33.27368303321776,36.62901241471871,0,0,0,0,0,0,0]]
pedersen volatility
Provisional volatility36.63percentage 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: 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=[[0,0,0,0,0,0,0,15.549461710339225,0,0,84.45053828966077],[0,42.54511894995898,50.7895816242822,0,0,0,0,6.6652994257588185,0,0,0],[0,30.097304552063527,33.27368303321776,36.62901241471871,0,0,0,0,0,0,0]]
pedersen volatility
Provisional volatility64.98percentage 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=[[0,0,0,0,0,0,0,15.549461710339225,0,0,84.45053828966077],[0,42.54511894995898,50.7895816242822,0,0,0,0,6.6652994257588185,0,0,0],[0,30.097304552063527,33.27368303321776,36.62901241471871,0,0,0,0,0,0,0]]
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
- Colombia: https://doi.org/10.71590/R2KLKI/BWJDHW · rights unknown
- Colombia: https://doi.org/10.71590/R2KLKI/QVG0NB · rights unknown
- Colombia: https://doi.org/10.71590/R2KLKI/UJ4B6K · rights unknown
- Colombia: CEDE Colombia 2023 alcaldia · rights unknown
- Colombia: CEDE Colombia 2019 alcaldia · rights unknown
- Colombia: CEDE Colombia 2015 alcaldia · rights unknown
Cite this record
Center for Digital Democracy. “Buenos Aires — Mayor.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CO-ALC-19110. Sources: colombia--url-44e0af24e3fef22401f2d269, colombia--url-f8cbad13a2c7112410d7a492, colombia--url-142631271ac95a7106b17681, colombia--Sdc3a3f1f89, colombia--S67eb704c85, colombia--S8164286948.