Skip to observatory content

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

Office briefing

SAN CIRO DE ACOSTA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SAN CIRO DE ACOSTA / SAN LUIS POTOSI · municipal · Municipal governmentMX-M-24-27

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
SAN CIRO DE ACOSTA / SAN LUIS POTOSI
Next election
2027-06-06
Linked upcoming event
next-d3febafe1aa444b6bc33a9ed
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

  • PVEM36.9%
  • MORENA35.6%
  • MC14.9%
  • PAN5.9%
  • NASLP3.0%
  • PES0.4%
Results for event-1d3d216f0b9c4c08f593c1e3
Label / candidateParty codeVotesShareSeatsStatus
PVEMmexico/Sb3a0ee9a8c/20241,94836.9%UnknownRecorded
MORENAmexico/Sb3a0ee9a8c/20241,88235.6%UnknownRecorded
MCmexico/Sb3a0ee9a8c/202478914.9%UnknownRecorded
PANmexico/Sb3a0ee9a8c/20243145.9%UnknownRecorded
NASLPmexico/Sb3a0ee9a8c/20241573%UnknownRecorded
PESmexico/Sb3a0ee9a8c/2024190.4%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PT_PVEM48.6%
  • MORENA24.0%
  • PAN_PRI_PRD_PCP22.0%
  • NASLP2.2%
Results for event-e30676ee65d51ae8144e5780
Label / candidateParty codeVotesShareSeatsStatus
PT_PVEMmexico/Sd37e2a3649/20212,42648.6%UnknownRecorded
MORENAmexico/Sd37e2a3649/20211,19724%UnknownRecorded
PAN_PRI_PRD_PCPmexico/Sd37e2a3649/20211,09622%UnknownRecorded
NASLPmexico/Sd37e2a3649/20211082.2%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PAN_PRD_MC36.2%
  • PT25.6%
  • PRI_PVEM_PANAL16.6%
  • MORENA9.2%
  • CAND_IND58.4%
Results for event-6337b12ef9203d9bd471ee0f
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRD_MCmexico/S4cfba9b58e/20181,96136.2%UnknownRecorded
PTmexico/S4cfba9b58e/20181,38725.6%UnknownRecorded
PRI_PVEM_PANALmexico/S4cfba9b58e/201890016.6%UnknownRecorded
MORENAmexico/S4cfba9b58e/20184969.2%UnknownRecorded
CAND_IND5mexico/S4cfba9b58e/20184538.4%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

52.410–100 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=1.2918379330593055, oldest_gap=11.044833557821821, previous_gap=25.460948829500722

pedersen volatility

Provisional volatility

71.76percentage 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=[[6.146016833039734,0,0,0,38.12879232726561,15.443335290663535,36.8369543942063,3.444901154824819],[0,0,0,0,0,0,24.798011187072717,75.20198881292728],[0,0,0,26.688474119684432,0,0,9.54396767365788,63.76755820665769]]

pedersen volatility

Provisional volatility

26.69percentage 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=[[6.146016833039734,0,0,0,38.12879232726561,15.443335290663535,36.8369543942063,3.444901154824819],[0,0,0,0,0,0,24.798011187072717,75.20198881292728],[0,0,0,26.688474119684432,0,0,9.54396767365788,63.76755820665769]]

pedersen volatility

Provisional volatility

49.22percentage 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=[[6.146016833039734,0,0,0,38.12879232726561,15.443335290663535,36.8369543942063,3.444901154824819],[0,0,0,0,0,0,24.798011187072717,75.20198881292728],[0,0,0,26.688474119684432,0,0,9.54396767365788,63.76755820665769]]

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. “SAN CIRO DE ACOSTA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-24-27. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sb3a0ee9a8c, mexico--Sd37e2a3649, mexico--S4cfba9b58e.