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

Office briefing

SAN JOSE ESTANCIA GRANDE — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SAN JOSE ESTANCIA GRANDE / OAXACA · municipal · Municipal governmentMX-M-20-166

Read the complete original research briefing

INE result distributions kept separate. Certified seats, supplementary elections, coalition and boundary audit remain.

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

Geography
SAN JOSE ESTANCIA GRANDE / OAXACA
Next election
2027-06-06
Linked upcoming event
next-bcbd3995a4ef583a4e555fab
Registry qualification
Unknown

2. How certain is that date?

2027-06-06 is expected (not formally called). Day precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2024

Special · Legal certification not established · candidate marks

  • MC49.9%
  • FXMO44.1%
  • MORENA1.8%
  • NAO0.7%
  • MUJER0.2%
Results for event-b372d7c74e03d7e46138083a
Label / candidateParty codeVotesShareSeatsStatus
MCmexico/Se0a740fabe/202427649.9%UnknownRecorded
FXMOmexico/Se0a740fabe/202424444.1%UnknownRecorded
MORENAmexico/Se0a740fabe/2024101.8%UnknownRecorded
NAOmexico/Se0a740fabe/202440.7%UnknownRecorded
MUJERmexico/Se0a740fabe/202410.2%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PVEM36.7%
  • NAO32.5%
  • MORENA14.7%
  • FXM10.8%
  • PAN_PRI_PRD2.4%
  • PT0.0%
  • PES0.0%
Results for event-66e49c5735dc58ab742c4c66
Label / candidateParty codeVotesShareSeatsStatus
PVEMmexico/Secb500aa71/202123036.7%UnknownRecorded
NAOmexico/Secb500aa71/202120432.5%UnknownRecorded
MORENAmexico/Secb500aa71/20219214.7%UnknownRecorded
FXMmexico/Secb500aa71/20216810.8%UnknownRecorded
PAN_PRI_PRDmexico/Secb500aa71/2021152.4%UnknownRecorded
PTmexico/Secb500aa71/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PESmexico/Secb500aa71/20210 (recorded zero)0% (recorded zero)UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRI50.6%
  • PSD47.4%
  • PAN_PRD_MC0.3%
  • PANAL0.0%
Results for event-1c679739a1fc42d029ef4e57
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/S528111c179/201830650.6%UnknownRecorded
PSDmexico/S528111c179/201828747.4%UnknownRecorded
PAN_PRD_MCmexico/S528111c179/201820.3%UnknownRecorded
PANALmexico/S528111c179/20180 (recorded zero)0% (recorded zero)UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

74.060–100 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=5.981308411214954, oldest_gap=3.1932773109243726, previous_gap=4.269293924466332

pedersen volatility

Provisional volatility

51.59percentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. 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=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Latest interval, vectors=[[0,0,0,0,0,51.58878504672897,1.8691588785046729,46.54205607476636],[0,0,0,0,37.76683087027914,0,15.106732348111658,47.1264367816092],[0,51.42857142857143,0,0,0,0,0,48.57142857142857]]

pedersen volatility

Provisional volatility

52.87percentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. 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=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[0,0,0,0,0,51.58878504672897,1.8691588785046729,46.54205607476636],[0,0,0,0,37.76683087027914,0,15.106732348111658,47.1264367816092],[0,51.42857142857143,0,0,0,0,0,48.57142857142857]]

pedersen volatility

Provisional volatility

52.23percentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. 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=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0,0,0,0,0,51.58878504672897,1.8691588785046729,46.54205607476636],[0,0,0,0,37.76683087027914,0,15.106732348111658,47.1264367816092],[0,51.42857142857143,0,0,0,0,0,48.57142857142857]]

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.

7. Unresolved issues and sources

No open research issues attached to this office.

Sources

Cite this record

Center for Digital Democracy. “SAN JOSE ESTANCIA GRANDE — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-166. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Se0a740fabe, mexico--Secb500aa71, mexico--S528111c179.