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

Office briefing

SAN NICOLAS HIDALGO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SAN NICOLAS HIDALGO / OAXACA · municipal · Municipal governmentMX-M-20-288

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
SAN NICOLAS HIDALGO / OAXACA
Next election
2027-06-06
Linked upcoming event
next-d8e0de72251d71f2e6c51b18
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

  • PT44.4%
  • PVEM27.7%
  • MORENA22.4%
  • PRD1.2%
  • FXMO0.9%
Results for event-628ca304a83f533f23a7a77d
Label / candidateParty codeVotesShareSeatsStatus
PTmexico/Se8b87ac250/202426044.4%UnknownRecorded
PVEMmexico/Se8b87ac250/202416227.7%UnknownRecorded
MORENAmexico/Se8b87ac250/202413122.4%UnknownRecorded
PRDmexico/Se8b87ac250/202471.2%UnknownRecorded
FXMOmexico/Se8b87ac250/202450.9%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PAN_PRI_PRD36.1%
  • MORENA35.2%
  • FXM24.6%
  • PES3.1%
  • PT0.5%
Results for event-82f4f40090b2352b7cbff7d1
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRI_PRDmexico/S8328e01ceb/202121136.1%UnknownRecorded
MORENAmexico/S8328e01ceb/202120635.2%UnknownRecorded
FXMmexico/S8328e01ceb/202114424.6%UnknownRecorded
PESmexico/S8328e01ceb/2021183.1%UnknownRecorded
PTmexico/S8328e01ceb/202130.5%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PAN_PRD_MC35.1%
  • PT_MORENA_ES32.3%
  • PRI_PVEM_PANAL28.7%
Results for event-5c2dd6e995530d511638e6a5
Label / candidateParty codeVotesShareSeatsStatus
PAN_PRD_MCmexico/Sfdd7295623/201819635.1%UnknownRecorded
PT_MORENA_ESmexico/Sfdd7295623/201818032.3%UnknownRecorded
PRI_PVEM_PANALmexico/Sfdd7295623/201816028.7%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

45.180–100 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=17.34513274336283, oldest_gap=2.985074626865675, previous_gap=0.8591065292096189

pedersen volatility

Provisional volatility

75.41percentage 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=[[0,0,1.238938053097345,46.017699115044245,28.672566371681416,0,23.1858407079646,0.8849557522123894],[0,0,0,0.5154639175257731,0,0,35.39518900343643,64.08934707903781],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=[[0,0,1.238938053097345,46.017699115044245,28.672566371681416,0,23.1858407079646,0.8849557522123894],[0,0,0,0.5154639175257731,0,0,35.39518900343643,64.08934707903781],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=[[0,0,1.238938053097345,46.017699115044245,28.672566371681416,0,23.1858407079646,0.8849557522123894],[0,0,0,0.5154639175257731,0,0,35.39518900343643,64.08934707903781],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. “SAN NICOLAS HIDALGO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-288. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Se8b87ac250, mexico--S8328e01ceb, mexico--Sfdd7295623.