Office briefing
Santa Rosa De Osos — Mayor
Tracked current office. Identifiers stay separate from display names.
Colombia · Santa Rosa De Osos / Antioquia · municipal · MayorCO-ALC-05686
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
- Santa Rosa De Osos / Antioquia
- Next election
- 2027-10-31
- Linked upcoming event
- next-ea6ab9cd7b9f2578813edecf
- 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 SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U24.4%
- PARTIDO CONSERVADOR COLOMBIANO19.9%
- CREEMOS17.8%
- CEDE party code 2023000116.0%
- POR SANTA ROSA DE OSOS15.7%
- PARTIDO ALIANZA VERDE6.2%
| Label / candidate | Party code | Votes | Share | Seats | Status |
|---|---|---|---|---|---|
| PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U · Luis Bernardo Molina Granda | 20050002colombia/Sdc3a3f1f89/2023 | 3,543 | 24.4% | Unknown | Recorded |
| PARTIDO CONSERVADOR COLOMBIANO · Jose Ignacio Gonzalez Cardona | 18490002colombia/Sdc3a3f1f89/2023 | 2,892 | 19.9% | Unknown | Recorded |
| CREEMOS · Mauricio Barrientos Osorio | 20150003colombia/Sdc3a3f1f89/2023 | 2,581 | 17.8% | Unknown | Recorded |
| CEDE party code 20230001 · Felix Olmedo Arango Correa | 20230001colombia/Sdc3a3f1f89/2023 | 2,321 | 16% | Unknown | Recorded |
| POR SANTA ROSA DE OSOS · Maria Del Carmen Roldan Arango | 20231760colombia/Sdc3a3f1f89/2023 | 2,283 | 15.7% | Unknown | Recorded |
| PARTIDO ALIANZA VERDE · Yovany Alexander Alvarez Correa | 20090002colombia/Sdc3a3f1f89/2023 | 900 | 6.2% | Unknown | Recorded |
2019
Ordinary · Legal certification not established · list votes
- PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE41.3%
- PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U24.0%
- PARTIDO CONSERVADOR COLOMBIANO23.2%
- PARTIDO ALIANZA VERDE6.1%
- PARTIDO ALIANZA SOCIAL INDEPENDIENTE - ASI3.5%
- MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS1.9%
| Label / candidate | Party code | Votes | Share | Seats | Status |
|---|---|---|---|---|---|
| PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE · Carlos Alberto Posada Zapata | 20130001colombia/S67eb704c85/2019 | 6,159 | 41.3% | Unknown | Recorded |
| PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U · Luis Bernardo Molina Granda | 20050002colombia/S67eb704c85/2019 | 3,579 | 24% | Unknown | Recorded |
| PARTIDO CONSERVADOR COLOMBIANO · Francisco Jair Palacio Lopera | 18490002colombia/S67eb704c85/2019 | 3,455 | 23.2% | Unknown | Recorded |
| PARTIDO ALIANZA VERDE · Yovany Alexander Alvarez Correa | 20090002colombia/S67eb704c85/2019 | 906 | 6.1% | Unknown | Recorded |
| PARTIDO ALIANZA SOCIAL INDEPENDIENTE - ASI · William Alejandro Vergara Perez | 19910006colombia/S67eb704c85/2019 | 524 | 3.5% | Unknown | Recorded |
| MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS · Oscar Mario Balbin Perez | 20130002colombia/S67eb704c85/2019 | 277 | 1.9% | Unknown | Recorded |
2015
Ordinary · Legal certification not established · list votes
- MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS51.0%
- PARTIDO CONSERVADOR COLOMBIANO31.7%
- PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE15.4%
- PARTIDO LIBERAL COLOMBIANO1.7%
- PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U0.2%
| Label / candidate | Party code | Votes | Share | Seats | Status |
|---|---|---|---|---|---|
| MOVIMIENTO ALTERNATIVO INDIGENA Y SOCIAL - MAIS · Maria Del Carmen Roldan Arango | 20130002colombia/S8164286948/2015 | 7,279 | 51% | Unknown | Recorded |
| PARTIDO CONSERVADOR COLOMBIANO · Marta Cecilia Ramirez Orrego | 18490002colombia/S8164286948/2015 | 4,533 | 31.7% | Unknown | Recorded |
| PARTIDO CENTRO DEMOCRATICO - MANO FIRME CORAZON GRANDE · Carlos Alberto Posada Zapata | 20130001colombia/S8164286948/2015 | 2,203 | 15.4% | Unknown | Recorded |
| PARTIDO LIBERAL COLOMBIANO · Jesus Emiro Del Rio Lopera | 18480001colombia/S8164286948/2015 | 244 | 1.7% | Unknown | Recorded |
| PARTIDO SOCIAL DE UNIDAD NACIONAL - PARTIDO DE LA U · Revocado (A) | 20050002colombia/S8164286948/2015 | 24 | 0.2% | Unknown | Recorded |
4. Competition and volatility
competition index
Provisional imported-series CI50.960–100 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=4.483471074380166, oldest_gap=19.225652874046066, previous_gap=17.31543624161074
pedersen volatility
Provisional volatility49.98percentage 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: 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=[[19.917355371900825,0,24.40082644628099,0,0,6.198347107438017,0,0,0,0,49.48347107438016],[23.187919463087248,0,24.02013422818792,0,41.33557046979866,6.080536912751678,3.5167785234899327,1.8590604026845639,0,0,0],[31.737030035706784,1.7083245816705175,0.16803192606595252,0,15.423930546803893,0,0,50.96268290975285,0,0,0]]
pedersen volatility
Provisional volatility59.36percentage 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=[[19.917355371900825,0,24.40082644628099,0,0,6.198347107438017,0,0,0,0,49.48347107438016],[23.187919463087248,0,24.02013422818792,0,41.33557046979866,6.080536912751678,3.5167785234899327,1.8590604026845639,0,0,0],[31.737030035706784,1.7083245816705175,0.16803192606595252,0,15.423930546803893,0,0,50.96268290975285,0,0,0]]
pedersen volatility
Provisional volatility54.67percentage 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=[[19.917355371900825,0,24.40082644628099,0,0,6.198347107438017,0,0,0,0,49.48347107438016],[23.187919463087248,0,24.02013422818792,0,41.33557046979866,6.080536912751678,3.5167785234899327,1.8590604026845639,0,0,0],[31.737030035706784,1.7083245816705175,0.16803192606595252,0,15.423930546803893,0,0,50.96268290975285,0,0,0]]
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. “Santa Rosa De Osos — Mayor.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/CO-ALC-05686. Sources: colombia--url-44e0af24e3fef22401f2d269, colombia--url-f8cbad13a2c7112410d7a492, colombia--url-142631271ac95a7106b17681, colombia--Sdc3a3f1f89, colombia--S67eb704c85, colombia--S8164286948.