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

Office briefing

SANTA CATARINA AYOMETLA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SANTA CATARINA AYOMETLA / TLAXCALA · municipal · Municipal governmentMX-M-29-48

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
SANTA CATARINA AYOMETLA / TLAXCALA
Next election
2027-06-06
Linked upcoming event
next-5ca230665632da53a50acc0f
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

  • PRD31.9%
  • PANALT27.8%
  • MC11.2%
  • PT10.1%
  • MORENA7.3%
  • PAN3.7%
  • PAC2.5%
  • PVEM1.8%
  • FXM0.3%
  • RSP0.2%
Results for event-9680a8e879e9cf03539a87b4
Label / candidateParty codeVotesShareSeatsStatus
PRDmexico/S04e96bed23/20241,99331.9%UnknownRecorded
PANALTmexico/S04e96bed23/20241,73627.8%UnknownRecorded
MCmexico/S04e96bed23/202469811.2%UnknownRecorded
PTmexico/S04e96bed23/202462910.1%UnknownRecorded
MORENAmexico/S04e96bed23/20244587.3%UnknownRecorded
PANmexico/S04e96bed23/20242303.7%UnknownRecorded
PACmexico/S04e96bed23/20241542.5%UnknownRecorded
PVEMmexico/S04e96bed23/20241101.8%UnknownRecorded
FXMmexico/S04e96bed23/2024160.3%UnknownRecorded
RSPmexico/S04e96bed23/2024120.2%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • MC20.2%
  • PT19.7%
  • PEST17.3%
  • PANALT11.6%
  • PAC9.9%
  • RSP9.5%
  • MORENA5.9%
  • PISSI1.7%
  • PRD0.6%
  • PRI0.6%
  • PAN0.3%
  • PVEM0.1%
  • PS0.0%
  • PES0.0%
  • FXM0.0%
Results for event-33bc7c574409e7064aabd0cb
Label / candidateParty codeVotesShareSeatsStatus
MCmexico/S4eb83d5b37/20211,09320.2%UnknownRecorded
PTmexico/S4eb83d5b37/20211,06219.7%UnknownRecorded
PESTmexico/S4eb83d5b37/202193617.3%UnknownRecorded
PANALTmexico/S4eb83d5b37/202162511.6%UnknownRecorded
PACmexico/S4eb83d5b37/20215359.9%UnknownRecorded
RSPmexico/S4eb83d5b37/20215129.5%UnknownRecorded
MORENAmexico/S4eb83d5b37/20213215.9%UnknownRecorded
PISSImexico/S4eb83d5b37/2021921.7%UnknownRecorded
PRDmexico/S4eb83d5b37/2021350.6%UnknownRecorded
PRImexico/S4eb83d5b37/2021340.6%UnknownRecorded
PANmexico/S4eb83d5b37/2021150.3%UnknownRecorded
PVEMmexico/S4eb83d5b37/202140.1%UnknownRecorded
PSmexico/S4eb83d5b37/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PESmexico/S4eb83d5b37/20210 (recorded zero)0% (recorded zero)UnknownRecorded
FXMmexico/S4eb83d5b37/20210 (recorded zero)0% (recorded zero)UnknownRecorded

2016

Special · Legal certification not established · candidate marks

  • PAN30.9%
  • PRD26.3%
  • ES14.3%
  • PAC10.8%
  • PRI_PVEM_PANAL6.9%
  • PT3.3%
  • MC2.9%
  • MORENA1.4%
  • PS0.3%
Results for event-6363b75494bd75c31d5760da
Label / candidateParty codeVotesShareSeatsStatus
PANmexico/S23c87c3a4e/20161,54430.9%UnknownRecorded
PRDmexico/S23c87c3a4e/20161,31726.3%UnknownRecorded
ESmexico/S23c87c3a4e/201671314.3%UnknownRecorded
PACmexico/S23c87c3a4e/201654010.8%UnknownRecorded
PRI_PVEM_PANALmexico/S23c87c3a4e/20163436.9%UnknownRecorded
PTmexico/S23c87c3a4e/20161643.3%UnknownRecorded
MCmexico/S23c87c3a4e/20161452.9%UnknownRecorded
MORENAmexico/S23c87c3a4e/2016691.4%UnknownRecorded
PSmexico/S23c87c3a4e/2016140.3%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

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=4.257786613651426, oldest_gap=4.681377603629617, previous_gap=0.5889057750759896

pedersen volatility

Provisional volatility

39.12percentage 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=[[3.810470510271703,0,33.018555334658714,10.420808482438702,1.8223989396951623,11.563949635520212,7.587806494367131,31.776010603048377],[0.28495440729483285,0.6458966565349544,0.6648936170212766,20.174772036474163,0.07598784194528875,20.763677811550153,6.098024316109423,51.2917933130699],[31.841616828212004,0,27.160239224582387,3.3821406475561973,0,2.990307279851516,1.4229738090327904,33.2027222107651]]

pedersen volatility

Provisional volatility

58.05percentage 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=[[3.810470510271703,0,33.018555334658714,10.420808482438702,1.8223989396951623,11.563949635520212,7.587806494367131,31.776010603048377],[0.28495440729483285,0.6458966565349544,0.6648936170212766,20.174772036474163,0.07598784194528875,20.763677811550153,6.098024316109423,51.2917933130699],[31.841616828212004,0,27.160239224582387,3.3821406475561973,0,2.990307279851516,1.4229738090327904,33.2027222107651]]

pedersen volatility

Provisional volatility

48.58percentage 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=[[3.810470510271703,0,33.018555334658714,10.420808482438702,1.8223989396951623,11.563949635520212,7.587806494367131,31.776010603048377],[0.28495440729483285,0.6458966565349544,0.6648936170212766,20.174772036474163,0.07598784194528875,20.763677811550153,6.098024316109423,51.2917933130699],[31.841616828212004,0,27.160239224582387,3.3821406475561973,0,2.990307279851516,1.4229738090327904,33.2027222107651]]

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. “SANTA CATARINA AYOMETLA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-29-48. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S04e96bed23, mexico--S4eb83d5b37, mexico--S23c87c3a4e.