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

Office briefing

SANTA MARIA TECOMAVACA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SANTA MARIA TECOMAVACA / OAXACA · municipal · Municipal governmentMX-M-20-432

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 TECOMAVACA / OAXACA
Next election
2027-06-06
Linked upcoming event
next-fdebc277e5d650a74e0b3272
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

  • MORENA28.9%
  • PUP25.7%
  • MC23.8%
  • PRI17.4%
  • PVEM0.6%
  • NAO0.2%
  • MUJER0.1%
Results for event-7bf8f92f36d86b85e369f2f7
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/Sb4c7ab8ed6/202434428.9%UnknownRecorded
PUPmexico/Sb4c7ab8ed6/202430625.7%UnknownRecorded
MCmexico/Sb4c7ab8ed6/202428323.8%UnknownRecorded
PRImexico/Sb4c7ab8ed6/202420717.4%UnknownRecorded
PVEMmexico/Sb4c7ab8ed6/202470.6%UnknownRecorded
NAOmexico/Sb4c7ab8ed6/202420.2%UnknownRecorded
MUJERmexico/Sb4c7ab8ed6/202410.1%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PAN_PRI_PRD33.9%
  • MORENA33.5%
  • PUP30.3%
  • PVEM0.3%
  • PT0.3%
  • NAO0.3%
  • RSP0.2%
  • PES0.0%
Results for event-63d25a16e67410cd9b29cbbd
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRI_PRDmexico/S4c76b12602/202140633.9%UnknownRecorded
MORENAmexico/S4c76b12602/202140133.5%UnknownRecorded
PUPmexico/S4c76b12602/202136330.3%UnknownRecorded
PVEMmexico/S4c76b12602/202140.3%UnknownRecorded
PTmexico/S4c76b12602/202130.3%UnknownRecorded
NAOmexico/S4c76b12602/202130.3%UnknownRecorded
RSPmexico/S4c76b12602/202120.2%UnknownRecorded
PESmexico/S4c76b12602/20210 (recorded zero)0% (recorded zero)UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PSD37.5%
  • PT_MORENA_ES31.9%
  • PRI_PVEM_PANAL25.1%
  • PAN_PRD_MC1.0%
  • PUP0.2%
Results for event-33188219c11b86a773628047
Label / candidateParty codeVotesShareSeatsStatus
PSDmexico/S4fe37ddbe2/201842537.5%UnknownRecorded
PT_MORENA_ESmexico/S4fe37ddbe2/201836231.9%UnknownRecorded
PRI_PVEM_PANALmexico/S4fe37ddbe2/201828525.1%UnknownRecorded
PAN_PRD_MCmexico/S4fe37ddbe2/2018111%UnknownRecorded
PUPmexico/S4fe37ddbe2/201820.2%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

86.550–100 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=3.304347826086957, oldest_gap=5.806451612903231, previous_gap=0.42301184433163996

pedersen volatility

Provisional volatility

42.88percentage 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=[[0,18,0,0,0.6086956521739131,24.608695652173914,29.91304347826087,26.869565217391305],[0,0,0,0.25380710659898476,0.338409475465313,0,33.92554991539763,65.48223350253807],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=[[0,18,0,0,0.6086956521739131,24.608695652173914,29.91304347826087,26.869565217391305],[0,0,0,0.25380710659898476,0.338409475465313,0,33.92554991539763,65.48223350253807],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=[[0,18,0,0,0.6086956521739131,24.608695652173914,29.91304347826087,26.869565217391305],[0,0,0,0.25380710659898476,0.338409475465313,0,33.92554991539763,65.48223350253807],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 MARIA TECOMAVACA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-432. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sb4c7ab8ed6, mexico--S4c76b12602, mexico--S4fe37ddbe2.