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

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Office briefing

CUILAPAM DE GUERRERO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · CUILAPAM DE GUERRERO / OAXACA · municipal · Municipal governmentMX-M-20-26

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
CUILAPAM DE GUERRERO / OAXACA
Next election
2027-06-06
Linked upcoming event
next-651221bc5654a73081b31440
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

  • C_MORENA_FXMO_324.5%
  • MC22.7%
  • PAN16.9%
  • C_PRI_PRD_116.6%
  • PVEM9.1%
  • C_PT_PUP_13.3%
  • CAND_IND11.0%
  • MUJER0.9%
  • NAO0.9%
Results for event-bc8e3ae1ac0b90e9520aad84
Label / candidateParty codeVotesShareSeatsStatus
C_MORENA_FXMO_3mexico/S2344647601/20243,26724.5%UnknownRecorded
MCmexico/S2344647601/20243,03122.7%UnknownRecorded
PANmexico/S2344647601/20242,25416.9%UnknownRecorded
C_PRI_PRD_1mexico/S2344647601/20242,21016.6%UnknownRecorded
PVEMmexico/S2344647601/20241,2149.1%UnknownRecorded
C_PT_PUP_1mexico/S2344647601/20244433.3%UnknownRecorded
CAND_IND1mexico/S2344647601/20241311%UnknownRecorded
MUJERmexico/S2344647601/20241220.9%UnknownRecorded
NAOmexico/S2344647601/20241160.9%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • MC30.6%
  • MORENA17.8%
  • RSP13.9%
  • PAN9.0%
  • PRI_PRD_48.2%
  • PVEM6.7%
  • FXM3.9%
  • PUP3.4%
  • PT2.6%
  • PES1.4%
  • NAO0.2%
Results for event-a5792bdde0f50fb47b0e94e0
Label / candidateParty codeVotesShareSeatsStatus
MCmexico/S4821c2e813/20213,78830.6%UnknownRecorded
MORENAmexico/S4821c2e813/20212,20717.8%UnknownRecorded
RSPmexico/S4821c2e813/20211,71913.9%UnknownRecorded
PANmexico/S4821c2e813/20211,1129%UnknownRecorded
PRI_PRD_4mexico/S4821c2e813/20211,0198.2%UnknownRecorded
PVEMmexico/S4821c2e813/20218276.7%UnknownRecorded
FXMmexico/S4821c2e813/20214773.9%UnknownRecorded
PUPmexico/S4821c2e813/20214163.4%UnknownRecorded
PTmexico/S4821c2e813/20213252.6%UnknownRecorded
PESmexico/S4821c2e813/20211681.4%UnknownRecorded
NAOmexico/S4821c2e813/2021270.2%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PT_MORENA_ES31.2%
  • PAN_PRD_MC31.2%
  • PUP16.1%
  • PSD11.4%
  • PRI_PVEM_PANAL5.2%
  • PMR1.5%
Results for event-4a1a7f52cfe0d8091dde3c6a
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENA_ESmexico/S37df645d11/20183,41731.2%UnknownRecorded
PAN_PRD_MCmexico/S37df645d11/20183,41631.2%UnknownRecorded
PUPmexico/S37df645d11/20181,76316.1%UnknownRecorded
PSDmexico/S37df645d11/20181,25111.4%UnknownRecorded
PRI_PVEM_PANALmexico/S37df645d11/20185705.2%UnknownRecorded
PMRmexico/S37df645d11/20181621.5%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

74.840–100 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=1.8454801376290249, oldest_gap=0.009452689290100125, previous_gap=13.082333471245345

pedersen volatility

Provisional volatility

28.59percentage 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=[[17.62589928057554,0,0,0,9.493274945261183,23.701908038786364,0,49.17891773537691],[9.201489449731072,0,0,2.689284236657013,6.843194042201076,31.344642118328505,18.26230864708316,31.659081505999175],null]

pedersen volatility

Withheld volatility

Unknownpercentage 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 · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[17.62589928057554,0,0,0,9.493274945261183,23.701908038786364,0,49.17891773537691],[9.201489449731072,0,0,2.689284236657013,6.843194042201076,31.344642118328505,18.26230864708316,31.659081505999175],null]

pedersen volatility

Withheld volatility

Unknownpercentage 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 · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[17.62589928057554,0,0,0,9.493274945261183,23.701908038786364,0,49.17891773537691],[9.201489449731072,0,0,2.689284236657013,6.843194042201076,31.344642118328505,18.26230864708316,31.659081505999175],null]

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. “CUILAPAM DE GUERRERO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-26. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S2344647601, mexico--S4821c2e813, mexico--S37df645d11.