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

Office briefing

TLACOAPA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · TLACOAPA / GUERRERO · municipal · Municipal governmentMX-M-12-64

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
TLACOAPA / GUERRERO
Next election
2027-06-06
Linked upcoming event
next-8fad6907d06a6d23d2d9370a
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

  • PVEM41.4%
  • MORENA16.4%
  • PT15.4%
  • PRD14.0%
  • MC6.2%
  • REGENERACION2.5%
  • PAN0.3%
Results for event-75a46c47e2e4c8e6690263d3
Label / candidateParty codeVotesShareSeatsStatus
PVEMmexico/Sab74ead8d5/20242,04741.4%UnknownRecorded
MORENAmexico/Sab74ead8d5/202480916.4%UnknownRecorded
PTmexico/Sab74ead8d5/202476115.4%UnknownRecorded
PRDmexico/Sab74ead8d5/202469114%UnknownRecorded
MCmexico/Sab74ead8d5/20243076.2%UnknownRecorded
REGENERACIONmexico/Sab74ead8d5/20241242.5%UnknownRecorded
PANmexico/Sab74ead8d5/2024150.3%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PAN36.5%
  • PRI33.9%
  • MORENA12.2%
  • PES10.8%
  • PRD1.2%
  • PT_PVEM0.9%
Results for event-182b9dd4ca21bdbf4e7cfdfa
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/S3347dcd87f/20211,79836.5%UnknownRecorded
PRImexico/S3347dcd87f/20211,66833.9%UnknownRecorded
MORENAmexico/S3347dcd87f/202159912.2%UnknownRecorded
PESmexico/S3347dcd87f/202153210.8%UnknownRecorded
PRDmexico/S3347dcd87f/2021571.2%UnknownRecorded
PT_PVEMmexico/S3347dcd87f/2021460.9%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRI35.2%
  • PRD30.6%
  • MORENA_ES21.0%
  • PT7.3%
  • PVEM0.6%
  • PAN0.3%
Results for event-789008c68a76fb6e2debb7be
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/Se70dbb0a17/20181,69635.2%UnknownRecorded
PRDmexico/Se70dbb0a17/20181,47630.6%UnknownRecorded
MORENA_ESmexico/Se70dbb0a17/20181,01121%UnknownRecorded
PTmexico/Se70dbb0a17/20183527.3%UnknownRecorded
PVEMmexico/Se70dbb0a17/2018290.6%UnknownRecorded
PANmexico/Se70dbb0a17/2018140.3%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

15.320–100 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=26.04122843920909, oldest_gap=4.805591961555265, previous_gap=2.765957446808514

pedersen volatility

Provisional volatility

83.12percentage 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=[[0.3155237694572991,0,14.535128312999579,16.007572570466976,43.05847707193942,6.457719814892722,17.017248632730333,2.6083298275136726],[38.255319148936174,35.48936170212766,1.2127659574468086,0,0,0,12.74468085106383,12.297872340425533],[0.3058103975535168,37.04674530362604,32.241153342070774,7.688947138488423,0.6334643949322848,0,0,22.083879423328966]]

pedersen volatility

Provisional volatility

50.69percentage 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=[[0.3155237694572991,0,14.535128312999579,16.007572570466976,43.05847707193942,6.457719814892722,17.017248632730333,2.6083298275136726],[38.255319148936174,35.48936170212766,1.2127659574468086,0,0,0,12.74468085106383,12.297872340425533],[0.3058103975535168,37.04674530362604,32.241153342070774,7.688947138488423,0.6334643949322848,0,0,22.083879423328966]]

pedersen volatility

Provisional volatility

66.91percentage 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=[[0.3155237694572991,0,14.535128312999579,16.007572570466976,43.05847707193942,6.457719814892722,17.017248632730333,2.6083298275136726],[38.255319148936174,35.48936170212766,1.2127659574468086,0,0,0,12.74468085106383,12.297872340425533],[0.3058103975535168,37.04674530362604,32.241153342070774,7.688947138488423,0.6334643949322848,0,0,22.083879423328966]]

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. “TLACOAPA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-12-64. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sab74ead8d5, mexico--S3347dcd87f, mexico--Se70dbb0a17.