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

Office briefing

SAN NICOLAS TOLENTINO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SAN NICOLAS TOLENTINO / SAN LUIS POTOSI · municipal · Municipal governmentMX-M-24-30

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 NICOLAS TOLENTINO / SAN LUIS POTOSI
Next election
2027-06-06
Linked upcoming event
next-587ef2867963eee9d7fc9597
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_MORENA52.6%
  • PRI42.7%
  • MC1.3%
  • PAN0.8%
Results for event-2c4c0265543c968b263ec0c7
Label / candidateParty codeVotesShareSeatsStatus
PVEM_PT_MORENAmexico/S11f734508b/20241,60452.6%UnknownRecorded
PRImexico/S11f734508b/20241,30142.7%UnknownRecorded
MCmexico/S11f734508b/2024411.3%UnknownRecorded
PANmexico/S11f734508b/2024250.8%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PAN_PRI_PRD_PCP34.9%
  • PT_PVEM32.9%
  • MORENA23.6%
  • NASLP5.5%
Results for event-2bbd80571642e9675b67053c
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRI_PRD_PCPmexico/Sa8cbf6ddfe/20211,09534.9%UnknownRecorded
PT_PVEMmexico/Sa8cbf6ddfe/20211,03132.9%UnknownRecorded
MORENAmexico/Sa8cbf6ddfe/202174123.6%UnknownRecorded
NASLPmexico/Sa8cbf6ddfe/20211715.5%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PT_MORENA_ES38.7%
  • CP33.3%
  • PRI18.9%
  • PAN_PRD_MC4.4%
  • CAND_IND120.5%
  • PVEM0.3%
Results for event-a9a3b0740cd93cc5e45a684d
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENA_ESmexico/S43d3da52c0/20181,27838.7%UnknownRecorded
CPmexico/S43d3da52c0/20181,10133.3%UnknownRecorded
PRImexico/S43d3da52c0/201862418.9%UnknownRecorded
PAN_PRD_MCmexico/S43d3da52c0/20181444.4%UnknownRecorded
CAND_IND12mexico/S43d3da52c0/2018150.5%UnknownRecorded
PVEMmexico/S43d3da52c0/2018110.3%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

63.460–100 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=10.19858633456748, oldest_gap=5.578317050110307, previous_gap=2.1066491112574113

pedersen volatility

Provisional volatility

46.01percentage 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=[[0.841467519353753,43.789969707169305,0,0,0,1.3800067317401548,0,53.988556041736786],[0,0,0,0,0,0,24.391046741277155,75.60895325872285],[0,19.66593129530413,0,0,0.34667507091080996,0,0,79.98739363378505]]

pedersen volatility

Provisional volatility

24.39percentage 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=[[0.841467519353753,43.789969707169305,0,0,0,1.3800067317401548,0,53.988556041736786],[0,0,0,0,0,0,24.391046741277155,75.60895325872285],[0,19.66593129530413,0,0,0.34667507091080996,0,0,79.98739363378505]]

pedersen volatility

Provisional volatility

35.2percentage 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=[[0.841467519353753,43.789969707169305,0,0,0,1.3800067317401548,0,53.988556041736786],[0,0,0,0,0,0,24.391046741277155,75.60895325872285],[0,19.66593129530413,0,0,0.34667507091080996,0,0,79.98739363378505]]

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 NICOLAS TOLENTINO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-24-30. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S11f734508b, mexico--Sa8cbf6ddfe, mexico--S43d3da52c0.