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

Office briefing

CHEMAX — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · CHEMAX / YUCATAN · municipal · Municipal governmentMX-M-31-19

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
CHEMAX / YUCATAN
Next election
2027-06-06
Linked upcoming event
next-85b289b7dc44ef4d22c6fff7
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

  • PAN51.2%
  • MORENA40.5%
  • PRI_PRD_NAY2.8%
  • PVEM_PT1.8%
  • MC1.1%
  • NAY0.1%
  • PRI0.0%
  • PRD0.0%
  • PVEM0.0%
  • PT0.0%
  • PAN_PRI_PRD_NAY0.0%
  • PAN_PRI_PRD0.0%
  • PAN_PRI_NAY0.0%
  • PAN_PRD_NAY0.0%
  • PAN_PRI0.0%
  • PAN_PRD0.0%
  • PAN_NAY0.0%
  • PRI_PRD0.0%
  • PRI_NAY0.0%
  • PRD_NAY0.0%
  • PVEM_PT_MORENA0.0%
  • PVEM_MORENA0.0%
  • PT_MORENA0.0%
Results for event-05af77243a3e37978828f0a9
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/Sccd46b0fed/202411,36751.2%UnknownRecorded
MORENAmexico/Sccd46b0fed/20248,99340.5%UnknownRecorded
PRI_PRD_NAYmexico/Sccd46b0fed/20246182.8%UnknownRecorded
PVEM_PTmexico/Sccd46b0fed/20243991.8%UnknownRecorded
MCmexico/Sccd46b0fed/20242441.1%UnknownRecorded
NAYmexico/Sccd46b0fed/2024300.1%UnknownRecorded
PRImexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PRDmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PVEMmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PTmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRI_PRD_NAYmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRI_PRDmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRI_NAYmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRD_NAYmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRImexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRDmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_NAYmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PRI_PRDmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PRI_NAYmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PRD_NAYmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PVEM_PT_MORENAmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PVEM_MORENAmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PT_MORENAmexico/Sccd46b0fed/20240 (recorded zero)0% (recorded zero)UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PAN52.2%
  • PRI25.0%
  • MORENA19.3%
  • PES0.7%
  • MC0.5%
  • PT0.5%
  • PRD_NAY0.5%
  • PRD_NAY_20.0%
  • PRD0.0%
  • PVEM0.0%
  • RSP0.0%
  • FXM0.0%
  • NAY0.0%
  • CAND_IND10.0%
  • PAN_PRD_NAY0.0%
  • PAN_PRD0.0%
  • PAN_NAY0.0%
  • PRI_PRD_NAY0.0%
  • PRI_PRD0.0%
  • PRI_NAY0.0%
Results for event-37ee01eeca226a43fc769300
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/S7f433b896d/202110,08752.2%UnknownRecorded
PRImexico/S7f433b896d/20214,83925%UnknownRecorded
MORENAmexico/S7f433b896d/20213,72619.3%UnknownRecorded
PESmexico/S7f433b896d/20211350.7%UnknownRecorded
MCmexico/S7f433b896d/20211010.5%UnknownRecorded
PTmexico/S7f433b896d/20211000.5%UnknownRecorded
PRD_NAYmexico/S7f433b896d/20211000.5%UnknownRecorded
PRD_NAY_2mexico/S7f433b896d/202150%UnknownRecorded
PRDmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PVEMmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
RSPmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
FXMmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
NAYmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND1mexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRD_NAYmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRDmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_NAYmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PRI_PRD_NAYmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PRI_PRDmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PRI_NAYmexico/S7f433b896d/20210 (recorded zero)0% (recorded zero)UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PAN50.1%
  • PRI38.4%
  • PT_MORENA8.5%
  • PRD0.5%
  • PVEM0.2%
  • MC0.2%
  • ES0.1%
  • PANAL0.1%
Results for event-2776ac05b601b02691f29ca7
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/Se744774264/20189,86450.1%UnknownRecorded
PRImexico/Se744774264/20187,56338.4%UnknownRecorded
PT_MORENAmexico/Se744774264/20181,6698.5%UnknownRecorded
PRDmexico/Se744774264/20181080.5%UnknownRecorded
PVEMmexico/Se744774264/2018320.2%UnknownRecorded
MCmexico/Se744774264/2018310.2%UnknownRecorded
ESmexico/Se744774264/2018280.1%UnknownRecorded
PANALmexico/Se744774264/2018140.1%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

19.920–100 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=10.964851508013489, oldest_gap=11.916722771764462, previous_gap=27.486513381867702

pedersen volatility

Provisional volatility

26.2percentage 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=[[52.50103921296938,0,0,0,0,1.1269687312364325,41.53618770495589,4.835804350838298],[52.830880427381764,25.344367045514062,0,0.5237521604776619,0,0.5289896820824386,19.515005499397684,1.2570051851463888],[51.08498627582993,39.168263504065465,0.5593246672536123,0,0.16572582733440364,0.16054689523020355,0,8.861152830286395]]

pedersen volatility

Provisional volatility

22.15percentage 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=[[52.50103921296938,0,0,0,0,1.1269687312364325,41.53618770495589,4.835804350838298],[52.830880427381764,25.344367045514062,0,0.5237521604776619,0,0.5289896820824386,19.515005499397684,1.2570051851463888],[51.08498627582993,39.168263504065465,0.5593246672536123,0,0.16572582733440364,0.16054689523020355,0,8.861152830286395]]

pedersen volatility

Provisional volatility

24.18percentage 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=[[52.50103921296938,0,0,0,0,1.1269687312364325,41.53618770495589,4.835804350838298],[52.830880427381764,25.344367045514062,0,0.5237521604776619,0,0.5289896820824386,19.515005499397684,1.2570051851463888],[51.08498627582993,39.168263504065465,0.5593246672536123,0,0.16572582733440364,0.16054689523020355,0,8.861152830286395]]

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. “CHEMAX — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-31-19. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sccd46b0fed, mexico--S7f433b896d, mexico--Se744774264.