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

Office briefing

COYUCA DE CATALAN — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · COYUCA DE CATALAN / GUERRERO · municipal · Municipal governmentMX-M-12-22

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
COYUCA DE CATALAN / GUERRERO
Next election
2027-06-06
Linked upcoming event
next-e215c96d50a83ea8e8395bd6
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_PRD68.7%
  • PT_PVEM_MORENA24.6%
  • MC1.1%
Results for event-2449b67eaca4a8d1bbf27340
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRI_PRDmexico/Sf9b52b152b/202410,86568.7%UnknownRecorded
PT_PVEM_MORENAmexico/Sf9b52b152b/20243,88724.6%UnknownRecorded
MCmexico/Sf9b52b152b/20241771.1%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PRI_PRD70.8%
  • MORENA21.5%
  • PT_PVEM1.5%
  • PES0.8%
  • FXP0.5%
  • RSP0.5%
Results for event-1454b3d8b33a85fe41afab80
Label / candidateParty codeVotesShareSeatsStatus
PRI_PRDmexico/Safe2b09f37/202110,09670.8%UnknownRecorded
MORENAmexico/Safe2b09f37/20213,06621.5%UnknownRecorded
PT_PVEMmexico/Safe2b09f37/20212141.5%UnknownRecorded
PESmexico/Safe2b09f37/20211140.8%UnknownRecorded
FXPmexico/Safe2b09f37/2021750.5%UnknownRecorded
RSPmexico/Safe2b09f37/2021740.5%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRD56.4%
  • MORENA_ES20.2%
  • PRI_PVEM14.9%
  • PT1.5%
  • PAN1.1%
  • PANAL0.4%
  • PPG0.1%
  • PSM0.0%
Results for event-8ffa52f56f936be0c72511f1
Label / candidateParty codeVotesShareSeatsStatus
PRDmexico/S7458cf4dc0/201810,03656.4%UnknownRecorded
MORENA_ESmexico/S7458cf4dc0/20183,59620.2%UnknownRecorded
PRI_PVEMmexico/S7458cf4dc0/20182,65314.9%UnknownRecorded
PTmexico/S7458cf4dc0/20182601.5%UnknownRecorded
PANmexico/S7458cf4dc0/20182001.1%UnknownRecorded
PANALmexico/S7458cf4dc0/2018730.4%UnknownRecorded
PPGmexico/S7458cf4dc0/2018260.1%UnknownRecorded
PSMmexico/S7458cf4dc0/201840%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

0 (recorded zero)0–100 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=46.74124187822359, oldest_gap=38.22412155745489, previous_gap=51.54336828213213

pedersen volatility

Provisional volatility

22.48percentage 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: Latest interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Latest interval, vectors=[[0,0,0,0,0,1.1856118963091968,0,98.8143881036908],[0,0,0,0,0,0,22.47965393357284,77.52034606642717],[1.1870845204178537,0,59.5679012345679,1.5432098765432098,0,0,0,37.70180436847104]]

pedersen volatility

Provisional volatility

62.3percentage 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=[[0,0,0,0,0,1.1856118963091968,0,98.8143881036908],[0,0,0,0,0,0,22.47965393357284,77.52034606642717],[1.1870845204178537,0,59.5679012345679,1.5432098765432098,0,0,0,37.70180436847104]]

pedersen volatility

Provisional volatility

42.39percentage 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: Both intervals mean

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0,0,0,0,0,1.1856118963091968,0,98.8143881036908],[0,0,0,0,0,0,22.47965393357284,77.52034606642717],[1.1870845204178537,0,59.5679012345679,1.5432098765432098,0,0,0,37.70180436847104]]

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. “COYUCA DE CATALAN — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-12-22. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sf9b52b152b, mexico--Safe2b09f37, mexico--S7458cf4dc0.