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

Office briefing

SANTA CATARINA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SANTA CATARINA / GUANAJUATO · municipal · Municipal governmentMX-M-11-34

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 CATARINA / GUANAJUATO
Next election
2027-06-06
Linked upcoming event
next-e2d43c2a8f8b65e90aba0fc1
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

  • PAN47.4%
  • PRI36.6%
  • MORENA12.0%
  • PT0.9%
  • PVEM0.6%
  • PRD0.1%
Results for event-5fe8e1d3892317f84d6b92df
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/S997355ddfb/20241,61247.4%UnknownRecorded
PRImexico/S997355ddfb/20241,24336.6%UnknownRecorded
MORENAmexico/S997355ddfb/202440812%UnknownRecorded
PTmexico/S997355ddfb/2024300.9%UnknownRecorded
PVEMmexico/S997355ddfb/2024200.6%UnknownRecorded
PRDmexico/S997355ddfb/202440.1%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PAN40.4%
  • PRI_PRD35.8%
  • MORENA18.6%
  • PVEM2.3%
  • PES1.1%
Results for event-6f9fb79227b8bfb201a7e24d
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/S342a6422de/20211,31040.4%UnknownRecorded
PRI_PRDmexico/S342a6422de/20211,16035.8%UnknownRecorded
MORENAmexico/S342a6422de/202160318.6%UnknownRecorded
PVEMmexico/S342a6422de/2021752.3%UnknownRecorded
PESmexico/S342a6422de/2021361.1%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PAN50.4%
  • PRI38.1%
  • MORENA7.6%
  • MC0.9%
Results for event-0f4c88dce1272e1882ec2a6a
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/S70948dbd86/20181,51350.4%UnknownRecorded
PRImexico/S70948dbd86/20181,14538.1%UnknownRecorded
MORENAmexico/S70948dbd86/20182277.6%UnknownRecorded
MCmexico/S70948dbd86/2018270.9%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

53.240–100 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=11.124510099487487, oldest_gap=12.637362637362642, previous_gap=4.711055276381913

pedersen volatility

Provisional volatility

45.95percentage 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=[[48.598130841121495,37.47362074163401,0.12059089538739826,0.9044317154054868,0.6029544769369912,0,12.300271329514622,0],[41.14321608040201,0,0,0,2.3555276381909547,0,18.938442211055275,37.562814070351756],[51.957417582417584,39.32005494505494,0,0,0,0.9271978021978022,7.795329670329671,0]]

pedersen volatility

Provisional volatility

51.06percentage 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=[[48.598130841121495,37.47362074163401,0.12059089538739826,0.9044317154054868,0.6029544769369912,0,12.300271329514622,0],[41.14321608040201,0,0,0,2.3555276381909547,0,18.938442211055275,37.562814070351756],[51.957417582417584,39.32005494505494,0,0,0,0.9271978021978022,7.795329670329671,0]]

pedersen volatility

Provisional volatility

48.51percentage 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=[[48.598130841121495,37.47362074163401,0.12059089538739826,0.9044317154054868,0.6029544769369912,0,12.300271329514622,0],[41.14321608040201,0,0,0,2.3555276381909547,0,18.938442211055275,37.562814070351756],[51.957417582417584,39.32005494505494,0,0,0,0.9271978021978022,7.795329670329671,0]]

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.

7. Unresolved issues and sources

No open research issues attached to this office.

Sources

Cite this record

Center for Digital Democracy. “SANTA CATARINA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-11-34. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S997355ddfb, mexico--S342a6422de, mexico--S70948dbd86.