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

Office briefing

SANTA MARIA JACATEPEC — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SANTA MARIA JACATEPEC / OAXACA · municipal · Municipal governmentMX-M-20-418

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
SANTA MARIA JACATEPEC / OAXACA
Next election
2027-06-06
Linked upcoming event
next-c651b9b0cc43d8b5c26935b2
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

  • C_PAN_PRD_PUP31.1%
  • C_PVEM_FXMO_231.0%
  • PT17.5%
  • MORENA13.7%
  • NAO3.8%
  • MC0.1%
Results for event-7c0a2c7e146d66e54a8cea80
Label / candidateParty codeVotesShareSeatsStatus
C_PAN_PRD_PUPmexico/Sfbb92f824a/20241,70331.1%UnknownRecorded
C_PVEM_FXMO_2mexico/Sfbb92f824a/20241,69831%UnknownRecorded
PTmexico/Sfbb92f824a/202495517.5%UnknownRecorded
MORENAmexico/Sfbb92f824a/202475013.7%UnknownRecorded
NAOmexico/Sfbb92f824a/20242093.8%UnknownRecorded
MCmexico/Sfbb92f824a/202470.1%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PES42.2%
  • PAN_PRI_PRD22.8%
  • NAO16.9%
  • RSP5.9%
  • MORENA4.8%
  • MC3.0%
  • PVEM0.8%
  • PT0.2%
  • FXM0.0%
Results for event-da47ed5282d23ba7027a1bef
Label / candidateParty codeVotesShareSeatsStatus
PESmexico/S4bf072fcf3/20212,38942.2%UnknownRecorded
PAN_PRI_PRDmexico/S4bf072fcf3/20211,29222.8%UnknownRecorded
NAOmexico/S4bf072fcf3/202195816.9%UnknownRecorded
RSPmexico/S4bf072fcf3/20213345.9%UnknownRecorded
MORENAmexico/S4bf072fcf3/20212694.8%UnknownRecorded
MCmexico/S4bf072fcf3/20211723%UnknownRecorded
PVEMmexico/S4bf072fcf3/2021480.8%UnknownRecorded
PTmexico/S4bf072fcf3/2021110.2%UnknownRecorded
FXMmexico/S4bf072fcf3/202120%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PAN_PRD_MC35.5%
  • PMR34.5%
  • PRI20.2%
  • PT_MORENA_ES4.0%
  • PANAL0.1%
  • PUP0.1%
Results for event-1cd5eb77207fefc33e7647c1
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRD_MCmexico/S6d43a4623a/20182,05835.5%UnknownRecorded
PMRmexico/S6d43a4623a/20182,00234.5%UnknownRecorded
PRImexico/S6d43a4623a/20181,16820.2%UnknownRecorded
PT_MORENA_ESmexico/S6d43a4623a/20182294%UnknownRecorded
PANALmexico/S6d43a4623a/201850.1%UnknownRecorded
PUPmexico/S6d43a4623a/201840.1%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

69.150–100 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=0.09394964299135466, oldest_gap=1.024515184778629, previous_gap=20.036529680365298

pedersen volatility

Provisional volatility

26.92percentage 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=[[0,0,0,17.944381811349118,0,0.13152950018789927,14.092446448703495,67.83164223975949],[0,0,0,0.2009132420091324,0.8767123287671232,3.141552511415525,4.9132420091324205,90.8675799086758],[0,21.36845956824003,0,0,0,0,0,78.63154043175999]]

pedersen volatility

Provisional volatility

21.37percentage 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=[[0,0,0,17.944381811349118,0,0.13152950018789927,14.092446448703495,67.83164223975949],[0,0,0,0.2009132420091324,0.8767123287671232,3.141552511415525,4.9132420091324205,90.8675799086758],[0,21.36845956824003,0,0,0,0,0,78.63154043175999]]

pedersen volatility

Provisional volatility

24.15percentage 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=[[0,0,0,17.944381811349118,0,0.13152950018789927,14.092446448703495,67.83164223975949],[0,0,0,0.2009132420091324,0.8767123287671232,3.141552511415525,4.9132420091324205,90.8675799086758],[0,21.36845956824003,0,0,0,0,0,78.63154043175999]]

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. “SANTA MARIA JACATEPEC — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-418. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sfbb92f824a, mexico--S4bf072fcf3, mexico--S6d43a4623a.