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

Office briefing

COPALA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · COPALA / GUERRERO · municipal · Municipal governmentMX-M-12-18

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
COPALA / GUERRERO
Next election
2027-06-06
Linked upcoming event
next-06d08d25dece1f52c6556d1a
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

  • MA40.6%
  • MORENA33.6%
  • PBG15.9%
  • PT2.0%
  • PAN_PRI_PRD2.0%
Results for event-b929d86571a9da7dddbda7af
Label / candidateParty codeVotesShareSeatsStatus
MAmexico/S70319b4f92/20242,77540.6%UnknownRecorded
MORENAmexico/S70319b4f92/20242,29433.6%UnknownRecorded
PBGmexico/S70319b4f92/20241,08715.9%UnknownRecorded
PTmexico/S70319b4f92/20241372%UnknownRecorded
PAN_PRI_PRDmexico/S70319b4f92/20241352%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PRD42.2%
  • PT_PVEM39.3%
  • MORENA10.7%
  • PRI2.4%
  • RSP0.6%
  • PES0.4%
  • PAN0.1%
Results for event-663ebd7dea0e1a9267a8af4f
Label / candidateParty codeVotesShareSeatsStatus
PRDmexico/S32e5d47e8b/20213,30042.2%UnknownRecorded
PT_PVEMmexico/S32e5d47e8b/20213,07539.3%UnknownRecorded
MORENAmexico/S32e5d47e8b/202183810.7%UnknownRecorded
PRImexico/S32e5d47e8b/20211892.4%UnknownRecorded
RSPmexico/S32e5d47e8b/2021450.6%UnknownRecorded
PESmexico/S32e5d47e8b/2021280.4%UnknownRecorded
PANmexico/S32e5d47e8b/202140.1%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PAN_PRD46.8%
  • PRI_PVEM25.9%
  • MORENA_ES7.9%
  • MC6.4%
  • IHG2.3%
  • CG1.8%
  • PANAL1.1%
  • PT0.5%
  • PPG0.4%
  • PSG0.2%
Results for event-1916cd306cf0de78ff322481
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRDmexico/S9c4b9328bb/20183,43246.8%UnknownRecorded
PRI_PVEMmexico/S9c4b9328bb/20181,90025.9%UnknownRecorded
MORENA_ESmexico/S9c4b9328bb/20185777.9%UnknownRecorded
MCmexico/S9c4b9328bb/20184716.4%UnknownRecorded
IHGmexico/S9c4b9328bb/20181672.3%UnknownRecorded
CGmexico/S9c4b9328bb/20181301.8%UnknownRecorded
PANALmexico/S9c4b9328bb/2018821.1%UnknownRecorded
PTmexico/S9c4b9328bb/2018350.5%UnknownRecorded
PPGmexico/S9c4b9328bb/2018260.4%UnknownRecorded
PSGmexico/S9c4b9328bb/2018130.2%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

61.830–100 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=7.4828873677660255, oldest_gap=22.420605883213817, previous_gap=3.0084235860409123

pedersen volatility

Provisional volatility

46.7percentage 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=[[0,0,0,2.131300560049782,0,0,35.68761667703796,62.181082762912254],[0.05348308597406071,2.527075812274368,44.12354592860008,0,0,0,11.204706511565718,42.091188661585775],[0,0,0,0.5122201082979657,0,6.893019171666911,0,92.59476072003511]]

pedersen volatility

Provisional volatility

57.91percentage 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: Previous interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[0,0,0,2.131300560049782,0,0,35.68761667703796,62.181082762912254],[0.05348308597406071,2.527075812274368,44.12354592860008,0,0,0,11.204706511565718,42.091188661585775],[0,0,0,0.5122201082979657,0,6.893019171666911,0,92.59476072003511]]

pedersen volatility

Provisional volatility

52.31percentage 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=[[0,0,0,2.131300560049782,0,0,35.68761667703796,62.181082762912254],[0.05348308597406071,2.527075812274368,44.12354592860008,0,0,0,11.204706511565718,42.091188661585775],[0,0,0,0.5122201082979657,0,6.893019171666911,0,92.59476072003511]]

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. “COPALA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-12-18. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S70319b4f92, mexico--S32e5d47e8b, mexico--S9c4b9328bb.