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

Office briefing

TUXTLA CHICO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · TUXTLA CHICO / CHIAPAS · municipal · Municipal governmentMX-M-7-101

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
TUXTLA CHICO / CHIAPAS
Next election
2027-06-06
Linked upcoming event
next-a03879ba8f576e05df56a620
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

  • PAN_PRI_PRD25.0%
  • PVEM22.6%
  • RSP18.0%
  • PES12.5%
  • MORENA9.9%
  • PCHU4.5%
  • PT1.5%
  • MC0.9%
  • PMCH0.4%
Results for event-25ec0458a4eb20ae92aa8fdf
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRI_PRDmexico/S136ad737b1/20245,12525%UnknownRecorded
PVEMmexico/S136ad737b1/20244,62722.6%UnknownRecorded
RSPmexico/S136ad737b1/20243,68718%UnknownRecorded
PESmexico/S136ad737b1/20242,56612.5%UnknownRecorded
MORENAmexico/S136ad737b1/20242,0289.9%UnknownRecorded
PCHUmexico/S136ad737b1/20249184.5%UnknownRecorded
PTmexico/S136ad737b1/20243121.5%UnknownRecorded
MCmexico/S136ad737b1/20241910.9%UnknownRecorded
PMCHmexico/S136ad737b1/2024880.4%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PAN_PRI_PRD28.4%
  • PES14.9%
  • PVEM11.0%
  • RSP10.9%
  • PCHU8.3%
  • MORENA8.1%
  • FXM5.2%
  • PMCH5.1%
  • MC1.7%
  • PT1.5%
  • PPCH1.1%
  • PNA0.4%
  • PAN0.0%
  • PRI0.0%
  • PRD0.0%
  • CAND_IND10.0%
  • CAND_IND20.0%
  • CAND_IND30.0%
  • CAND_IND40.0%
  • CAND_IND50.0%
  • CAND_IND60.0%
  • CAND_IND70.0%
  • CAND_IND80.0%
  • CAND_IND90.0%
  • CAND_IND100.0%
Results for event-851472b04a41d8414697470d
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRI_PRDmexico/S4b5c65e74d/20215,47828.4%UnknownRecorded
PESmexico/S4b5c65e74d/20212,88114.9%UnknownRecorded
PVEMmexico/S4b5c65e74d/20212,12811%UnknownRecorded
RSPmexico/S4b5c65e74d/20212,09410.9%UnknownRecorded
PCHUmexico/S4b5c65e74d/20211,6028.3%UnknownRecorded
MORENAmexico/S4b5c65e74d/20211,5708.1%UnknownRecorded
FXMmexico/S4b5c65e74d/20211,0075.2%UnknownRecorded
PMCHmexico/S4b5c65e74d/20219795.1%UnknownRecorded
MCmexico/S4b5c65e74d/20213361.7%UnknownRecorded
PTmexico/S4b5c65e74d/20212831.5%UnknownRecorded
PPCHmexico/S4b5c65e74d/20212051.1%UnknownRecorded
PNAmexico/S4b5c65e74d/2021680.4%UnknownRecorded
PANmexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PRImexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PRDmexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND1mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND2mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND3mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND4mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND5mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND6mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND7mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND8mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND9mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND10mexico/S4b5c65e74d/20210 (recorded zero)0% (recorded zero)UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PT_MORENA_ES28.2%
  • PRI20.6%
  • PAN_PRD_MC18.3%
  • PCU11.8%
  • PVEM11.5%
  • MVC6.8%
  • CAND_IND401.6%
  • PANAL0.5%
Results for event-aced460e051ae5e6cb657275
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENA_ESmexico/S85b57886eb/20185,55828.2%UnknownRecorded
PRImexico/S85b57886eb/20184,06420.6%UnknownRecorded
PAN_PRD_MCmexico/S85b57886eb/20183,60518.3%UnknownRecorded
PCUmexico/S85b57886eb/20182,31711.8%UnknownRecorded
PVEMmexico/S85b57886eb/20182,26211.5%UnknownRecorded
MVCmexico/S85b57886eb/20181,3366.8%UnknownRecorded
CAND_IND40mexico/S85b57886eb/20183181.6%UnknownRecorded
PANALmexico/S85b57886eb/2018940.5%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

67.630–100 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=2.5483573840957945, oldest_gap=7.640380484811292, previous_gap=13.93913370189469

pedersen volatility

Provisional volatility

14.28percentage 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=[[0,0,0,1.5965612526865214,23.6772080646812,0.9773820489202742,10.37764814246239,63.371200491249624],[0,0,0,1.5189737534217165,11.421823841983791,1.8034458697869142,8.426815522516236,76.82894101229134],[0,20.78347141249872,0,0,11.567965633629948,0,0,67.64856295387133]]

pedersen volatility

Provisional volatility

20.93percentage 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=[[0,0,0,1.5965612526865214,23.6772080646812,0.9773820489202742,10.37764814246239,63.371200491249624],[0,0,0,1.5189737534217165,11.421823841983791,1.8034458697869142,8.426815522516236,76.82894101229134],[0,20.78347141249872,0,0,11.567965633629948,0,0,67.64856295387133]]

pedersen volatility

Provisional volatility

17.61percentage 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: Both intervals mean

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0,0,0,1.5965612526865214,23.6772080646812,0.9773820489202742,10.37764814246239,63.371200491249624],[0,0,0,1.5189737534217165,11.421823841983791,1.8034458697869142,8.426815522516236,76.82894101229134],[0,20.78347141249872,0,0,11.567965633629948,0,0,67.64856295387133]]

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. “TUXTLA CHICO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-7-101. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S136ad737b1, mexico--S4b5c65e74d, mexico--S85b57886eb.