Skip to observatory content

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

Office briefing

TLAHUAC — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · TLAHUAC / CIUDAD DE MEXICO · municipal · Municipal governmentMX-M-9-11

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
TLAHUAC / CIUDAD DE MEXICO
Next election
2027-06-06
Linked upcoming event
next-077b0ba81c1c9bd9f78d9bdb
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

  • MORENA46.9%
  • PAN_PRI_PRD29.6%
  • MC8.2%
  • PVEM5.8%
  • PT4.0%
Results for event-9de67a68b55332ed7e0b1334
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/S97cadeb222/202496,31846.9%UnknownRecorded
PAN_PRI_PRDmexico/S97cadeb222/202460,88529.6%UnknownRecorded
MCmexico/S97cadeb222/202416,8628.2%UnknownRecorded
PVEMmexico/S97cadeb222/202411,8175.8%UnknownRecorded
PTmexico/S97cadeb222/20248,2184%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PT_MORENA42.9%
  • PRI_PRD32.0%
  • PAN7.4%
  • PVEM6.3%
  • PES2.5%
  • MC1.9%
  • FXM1.5%
  • RSP1.0%
  • ELIGE0.8%
Results for event-e069df61a262b606bd4482fd
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENAmexico/Sf6fcef0b4e/202158,71342.9%UnknownRecorded
PRI_PRDmexico/Sf6fcef0b4e/202143,79432%UnknownRecorded
PANmexico/Sf6fcef0b4e/202110,0987.4%UnknownRecorded
PVEMmexico/Sf6fcef0b4e/20218,5836.3%UnknownRecorded
PESmexico/Sf6fcef0b4e/20213,4842.5%UnknownRecorded
MCmexico/Sf6fcef0b4e/20212,6621.9%UnknownRecorded
FXMmexico/Sf6fcef0b4e/20212,0541.5%UnknownRecorded
RSPmexico/Sf6fcef0b4e/20211,3541%UnknownRecorded
ELIGEmexico/Sf6fcef0b4e/20211,0740.8%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PT_MORENA_ES47.8%
  • PAN_PRD_MC24.9%
  • PVEM11.8%
  • PRI8.0%
  • PH2.4%
  • PANAL2.2%
Results for event-bf58a5a4ca44a3dd1267cf34
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENA_ESmexico/S12d089d9e5/201893,16747.8%UnknownRecorded
PAN_PRD_MCmexico/S12d089d9e5/201848,51324.9%UnknownRecorded
PVEMmexico/S12d089d9e5/201822,91511.8%UnknownRecorded
PRImexico/S12d089d9e5/201815,5528%UnknownRecorded
PHmexico/S12d089d9e5/20184,6292.4%UnknownRecorded
PANALmexico/S12d089d9e5/20184,2252.2%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

16.440–100 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=18.25502318392581, oldest_gap=23.62633001941789, previous_gap=11.318049402196998

pedersen volatility

Provisional volatility

60.52percentage 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=[[0,0,0,4.233900051519835,6.088098918083462,8.687274600721278,49.62287480680062,31.367851622874806],[7.660678521575529,0,0,0,6.511349153365297,2.019481701766098,0,83.80849062329307],[0,8.228527891386818,0,0,12.124274474738229,0,0,79.64719763387495]]

pedersen volatility

Provisional volatility

13.84percentage 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=[[0,0,0,4.233900051519835,6.088098918083462,8.687274600721278,49.62287480680062,31.367851622874806],[7.660678521575529,0,0,0,6.511349153365297,2.019481701766098,0,83.80849062329307],[0,8.228527891386818,0,0,12.124274474738229,0,0,79.64719763387495]]

pedersen volatility

Provisional volatility

37.18percentage 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=[[0,0,0,4.233900051519835,6.088098918083462,8.687274600721278,49.62287480680062,31.367851622874806],[7.660678521575529,0,0,0,6.511349153365297,2.019481701766098,0,83.80849062329307],[0,8.228527891386818,0,0,12.124274474738229,0,0,79.64719763387495]]

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. “TLAHUAC — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-9-11. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S97cadeb222, mexico--Sf6fcef0b4e, mexico--S12d089d9e5.