Skip to observatory content

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

Office briefing

SANTA GERTRUDIS — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SANTA GERTRUDIS / OAXACA · municipal · Municipal governmentMX-M-20-388

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 GERTRUDIS / OAXACA
Next election
2027-06-06
Linked upcoming event
next-444fb1c95bcfc74529bca19e
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

  • MORENA48.7%
  • PRI38.0%
  • PVEM9.3%
  • MUJER0.6%
Results for event-9542d89d2015c30751ad642d
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/S87f2f588b9/202486048.7%UnknownRecorded
PRImexico/S87f2f588b9/202467138%UnknownRecorded
PVEMmexico/S87f2f588b9/20241649.3%UnknownRecorded
MUJERmexico/S87f2f588b9/2024100.6%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • MORENA42.9%
  • PAN_PRI_PRD33.0%
  • PT19.3%
  • RSP1.5%
  • PVEM0.7%
  • PES0.3%
Results for event-ea9d1ffc53f24b8e4540ae26
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/S93fea78390/202178242.9%UnknownRecorded
PAN_PRI_PRDmexico/S93fea78390/202160133%UnknownRecorded
PTmexico/S93fea78390/202135119.3%UnknownRecorded
RSPmexico/S93fea78390/2021271.5%UnknownRecorded
PVEMmexico/S93fea78390/2021130.7%UnknownRecorded
PESmexico/S93fea78390/202160.3%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRI_PVEM_PANAL36.1%
  • PT_MORENA_ES31.1%
  • CAND_IND1925.2%
  • PAN_PRD_MC4.5%
Results for event-c89b90bb4f1cab79f883d957
Label / candidateParty codeVotesShareSeatsStatus
PRI_PVEM_PANALmexico/S7e459b90bd/201865436.1%UnknownRecorded
PT_MORENA_ESmexico/S7e459b90bd/201856531.1%UnknownRecorded
CAND_IND19mexico/S7e459b90bd/201845725.2%UnknownRecorded
PAN_PRD_MCmexico/S7e459b90bd/2018824.5%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

48.960–100 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=11.085043988269796, oldest_gap=5.062571103526729, previous_gap=10.168539325842694

pedersen volatility

Provisional volatility

54.75percentage 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=[[0,39.354838709677416,0,0,9.618768328445748,0,50.43988269794721,0.5865102639296188],[0,0,0,19.719101123595507,0.7303370786516854,0,43.93258426966292,35.61797752808989],null]

pedersen volatility

Withheld volatility

Unknownpercentage 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 · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[0,39.354838709677416,0,0,9.618768328445748,0,50.43988269794721,0.5865102639296188],[0,0,0,19.719101123595507,0.7303370786516854,0,43.93258426966292,35.61797752808989],null]

pedersen volatility

Withheld volatility

Unknownpercentage 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 · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0,39.354838709677416,0,0,9.618768328445748,0,50.43988269794721,0.5865102639296188],[0,0,0,19.719101123595507,0.7303370786516854,0,43.93258426966292,35.61797752808989],null]

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 GERTRUDIS — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-388. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S87f2f588b9, mexico--S93fea78390, mexico--S7e459b90bd.