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

Office briefing

SAN BALTAZAR CHICHICAPAM — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SAN BALTAZAR CHICHICAPAM / OAXACA · municipal · Municipal governmentMX-M-20-109

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 BALTAZAR CHICHICAPAM / OAXACA
Next election
2027-06-06
Linked upcoming event
next-33a6cfd574e653e18d7168a0
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?

2021

Special · Legal certification not established · candidate marks

  • PT60.5%
  • PAN_PRI_PRD24.7%
  • MORENA9.3%
  • RSP0.8%
  • PES0.4%
Results for event-e85a9937e751aa1308cb68ea
Label / candidateParty codeVotesShareSeatsStatus
PTmexico/S45f2192ce8/20211,10560.5%UnknownRecorded
PAN_PRI_PRDmexico/S45f2192ce8/202145124.7%UnknownRecorded
MORENAmexico/S45f2192ce8/20211709.3%UnknownRecorded
RSPmexico/S45f2192ce8/2021140.8%UnknownRecorded
PESmexico/S45f2192ce8/202180.4%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PT_MORENA_ES52.5%
  • PRI_PVEM_PANAL40.2%
  • PAN_PRD_MC2.8%
  • PMR0.3%
  • PSD0.1%
Results for event-a0f6a127b98dc7575ca5dd42
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENA_ESmexico/S2af48a582e/20181,02252.5%UnknownRecorded
PRI_PVEM_PANALmexico/S2af48a582e/201878340.2%UnknownRecorded
PAN_PRD_MCmexico/S2af48a582e/2018552.8%UnknownRecorded
PMRmexico/S2af48a582e/201850.3%UnknownRecorded
PSDmexico/S2af48a582e/201820.1%UnknownRecorded

4. Competition and volatility

competition index

Withheld

Unknown0–100 historical closeness

Actual-event and/or comparability review incomplete

Comparison status: Comparison unavailable · INE result distributions kept separate. Certified seats, supplementary elections, coalition and boundary audit remain.

Method ci.weighted-gap.v1. Inputs: latest_gap=37.4141876430206, oldest_gap=null, previous_gap=12.80128548473487

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: Latest interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Latest interval, vectors=[[0,0,0,63.215102974828376,0,0,9.725400457665904,27.059496567505718],null,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=[[0,0,0,63.215102974828376,0,0,9.725400457665904,27.059496567505718],null,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=[[0,0,0,63.215102974828376,0,0,9.725400457665904,27.059496567505718],null,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 BALTAZAR CHICHICAPAM — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-109. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S45f2192ce8, mexico--S2af48a582e.