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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 / SAN LUIS POTOSI · municipal · Municipal governmentMX-M-24-32

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 / SAN LUIS POTOSI
Next election
2027-06-06
Linked upcoming event
next-9e4f0ec0d64626056f7795d3
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

  • PVEM_PT_MORENA41.8%
  • ML38.8%
  • MC7.3%
  • NASLP5.4%
  • PAN_PRI_PRD1.3%
Results for event-1165fa6928d3a9a8ab138a3e
Label / candidateParty codeVotesShareSeatsStatus
PVEM_PT_MORENAmexico/Secd6dbf9cf/20242,37741.8%UnknownRecorded
MLmexico/Secd6dbf9cf/20242,20738.8%UnknownRecorded
MCmexico/Secd6dbf9cf/20244167.3%UnknownRecorded
NASLPmexico/Secd6dbf9cf/20243065.4%UnknownRecorded
PAN_PRI_PRDmexico/Secd6dbf9cf/2024741.3%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PT_PVEM49.2%
  • MORENA43.5%
  • PAN_PRI_PRD_PCP3.6%
Results for event-dd71a60d5495db5b23598074
Label / candidateParty codeVotesShareSeatsStatus
PT_PVEMmexico/Sd0110a8bc0/20213,06449.2%UnknownRecorded
MORENAmexico/Sd0110a8bc0/20212,70643.5%UnknownRecorded
PAN_PRI_PRD_PCPmexico/Sd0110a8bc0/20212243.6%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PVEM36.6%
  • PT_MORENA_ES33.3%
  • PRD13.1%
  • PRI_PANAL_CP10.4%
  • PAN0.8%
Results for event-b057a722bfb40a9314a50f1a
Label / candidateParty codeVotesShareSeatsStatus
PVEMmexico/Sc7fa9ca6ca/20182,18236.6%UnknownRecorded
PT_MORENA_ESmexico/Sc7fa9ca6ca/20181,98433.3%UnknownRecorded
PRDmexico/Sc7fa9ca6ca/201877913.1%UnknownRecorded
PRI_PANAL_CPmexico/Sc7fa9ca6ca/201861810.4%UnknownRecorded
PANmexico/Sc7fa9ca6ca/2018460.8%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

79.80–100 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=3.159851301115239, oldest_gap=3.530041005526833, previous_gap=5.972639305972642

pedersen volatility

Provisional volatility

45.15percentage 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: Latest interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Latest interval, vectors=[[0,0,0,0,0,7.732342007434944,0,92.26765799256506],[0,0,0,0,0,0,45.14514514514514,54.85485485485486],[0.8201105366375468,0,13.888393653057586,0,38.901765020502765,0,0,46.3897307898021]]

pedersen volatility

Provisional volatility

53.61percentage 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=[[0,0,0,0,0,7.732342007434944,0,92.26765799256506],[0,0,0,0,0,0,45.14514514514514,54.85485485485486],[0.8201105366375468,0,13.888393653057586,0,38.901765020502765,0,0,46.3897307898021]]

pedersen volatility

Provisional volatility

49.38percentage 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=[[0,0,0,0,0,7.732342007434944,0,92.26765799256506],[0,0,0,0,0,0,45.14514514514514,54.85485485485486],[0.8201105366375468,0,13.888393653057586,0,38.901765020502765,0,0,46.3897307898021]]

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-24-32. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Secd6dbf9cf, mexico--Sd0110a8bc0, mexico--Sc7fa9ca6ca.