Skip to observatory content

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

Office briefing

TAMAZUNCHALE — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · TAMAZUNCHALE / SAN LUIS POTOSI · municipal · Municipal governmentMX-M-24-37

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
TAMAZUNCHALE / SAN LUIS POTOSI
Next election
2027-06-06
Linked upcoming event
next-90091144cf621142f898d7d8
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

  • PVEM52.1%
  • MORENA27.1%
  • PAN_PRI_PRD4.6%
  • ML3.7%
  • PES2.8%
  • MC1.8%
  • NASLP1.0%
  • CP0.9%
Results for event-93b220ee88c3f76dc390297a
Label / candidateParty codeVotesShareSeatsStatus
PVEMmexico/Se8d5d1ce2f/202422,06752.1%UnknownRecorded
MORENAmexico/Se8d5d1ce2f/202411,45727.1%UnknownRecorded
PAN_PRI_PRDmexico/Se8d5d1ce2f/20241,9464.6%UnknownRecorded
MLmexico/Se8d5d1ce2f/20241,5503.7%UnknownRecorded
PESmexico/Se8d5d1ce2f/20241,1772.8%UnknownRecorded
MCmexico/Se8d5d1ce2f/20247621.8%UnknownRecorded
NASLPmexico/Se8d5d1ce2f/20244341%UnknownRecorded
CPmexico/Se8d5d1ce2f/20244020.9%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • MORENA34.8%
  • PAN_PRI_PRD_PCP26.7%
  • PT_PVEM21.1%
  • NASLP4.1%
  • RSP3.4%
  • PMC3.3%
  • PES1.2%
  • FXM0.7%
Results for event-cba277b531d763f88aa09cbe
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/Se04ea5c24f/202114,38834.8%UnknownRecorded
PAN_PRI_PRD_PCPmexico/Se04ea5c24f/202111,05926.7%UnknownRecorded
PT_PVEMmexico/Se04ea5c24f/20218,72121.1%UnknownRecorded
NASLPmexico/Se04ea5c24f/20211,7014.1%UnknownRecorded
RSPmexico/Se04ea5c24f/20211,4203.4%UnknownRecorded
PMCmexico/Se04ea5c24f/20211,3633.3%UnknownRecorded
PESmexico/Se04ea5c24f/20214781.2%UnknownRecorded
FXMmexico/Se04ea5c24f/20213100.7%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PAN_PRD_MC30.8%
  • PRI_PANAL30.7%
  • CP16.8%
  • PT_MORENA_ES13.1%
  • PVEM1.7%
Results for event-1556beef110612f5cf71f969
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRD_MCmexico/S9f6e14134e/201812,87930.8%UnknownRecorded
PRI_PANALmexico/S9f6e14134e/201812,82730.7%UnknownRecorded
CPmexico/S9f6e14134e/20187,04516.8%UnknownRecorded
PT_MORENA_ESmexico/S9f6e14134e/20185,47713.1%UnknownRecorded
PVEMmexico/S9f6e14134e/20187071.7%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

7.290–100 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=26.66164090966202, oldest_gap=0.13355592654423987, previous_gap=8.440669371196751

pedersen volatility

Provisional volatility

57.37percentage 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=[[0,0,0,0,55.451689910792815,1.9148134187712025,28.790049001130797,13.843447669305188],[0,0,0,0,0,0,36.48073022312373,63.519269776876264],[0,0,0,0,1.8158469243611146,0,0,98.1841530756389]]

pedersen volatility

Provisional volatility

36.48percentage 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=[[0,0,0,0,55.451689910792815,1.9148134187712025,28.790049001130797,13.843447669305188],[0,0,0,0,0,0,36.48073022312373,63.519269776876264],[0,0,0,0,1.8158469243611146,0,0,98.1841530756389]]

pedersen volatility

Provisional volatility

46.92percentage 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=[[0,0,0,0,55.451689910792815,1.9148134187712025,28.790049001130797,13.843447669305188],[0,0,0,0,0,0,36.48073022312373,63.519269776876264],[0,0,0,0,1.8158469243611146,0,0,98.1841530756389]]

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. “TAMAZUNCHALE — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-24-37. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Se8d5d1ce2f, mexico--Se04ea5c24f, mexico--S9f6e14134e.