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

Office briefing

TLALMANALCO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · TLALMANALCO / MEXICO · municipal · Municipal governmentMX-M-15-104

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
TLALMANALCO / MEXICO
Next election
2027-06-06
Linked upcoming event
next-911557c41a9c1504231b8f85
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

  • MORENA37.4%
  • MC19.5%
  • PT18.2%
  • NAEM6.2%
  • PVEM5.9%
  • PRI5.3%
  • PAN2.0%
  • PRD1.3%
Results for event-708cf8f8f88452f2a9354080
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/S7c08a953c5/202410,02437.4%UnknownRecorded
MCmexico/S7c08a953c5/20245,23319.5%UnknownRecorded
PTmexico/S7c08a953c5/20244,88518.2%UnknownRecorded
NAEMmexico/S7c08a953c5/20241,6476.2%UnknownRecorded
PVEMmexico/S7c08a953c5/20241,5795.9%UnknownRecorded
PRImexico/S7c08a953c5/20241,4245.3%UnknownRecorded
PANmexico/S7c08a953c5/20245242%UnknownRecorded
PRDmexico/S7c08a953c5/20243421.3%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • MC26.6%
  • PT_MORENA_NAEM17.6%
  • PRD14.8%
  • PRI14.6%
  • PVEM14.0%
  • PES3.7%
  • RSP3.3%
  • FXM1.8%
  • PAN1.1%
Results for event-0866c3233ee447bff1f17dc9
Label / candidateParty codeVotesShareSeatsStatus
MCmexico/Sa305ab80a8/20216,18026.6%UnknownRecorded
PT_MORENA_NAEMmexico/Sa305ab80a8/20214,08617.6%UnknownRecorded
PRDmexico/Sa305ab80a8/20213,43914.8%UnknownRecorded
PRImexico/Sa305ab80a8/20213,39514.6%UnknownRecorded
PVEMmexico/Sa305ab80a8/20213,25714%UnknownRecorded
PESmexico/Sa305ab80a8/20218683.7%UnknownRecorded
RSPmexico/Sa305ab80a8/20217733.3%UnknownRecorded
FXMmexico/Sa305ab80a8/20214291.8%UnknownRecorded
PANmexico/Sa305ab80a8/20212671.1%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PT_MORENA_ES32.4%
  • PAN_PRD_MC29.0%
  • PRI16.6%
  • CAND_IND147.9%
  • PANAL5.2%
  • VR3.4%
  • PVEM2.6%
Results for event-cb0af5481736c2454a30f5b0
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENA_ESmexico/Sb2895afd37/20188,17632.4%UnknownRecorded
PAN_PRD_MCmexico/Sb2895afd37/20187,31429%UnknownRecorded
PRImexico/Sb2895afd37/20184,18816.6%UnknownRecorded
CAND_IND14mexico/Sb2895afd37/20181,9967.9%UnknownRecorded
PANALmexico/Sb2895afd37/20181,3235.2%UnknownRecorded
VRmexico/Sb2895afd37/20188653.4%UnknownRecorded
PVEMmexico/Sb2895afd37/20186592.6%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

28.380–100 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=18.672538779328082, oldest_gap=3.515354186207741, previous_gap=9.227108486824712

pedersen volatility

Provisional volatility

58.97percentage 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=[[2.0422480318029463,5.549925949021747,1.3329176085431444,19.038896250682047,6.1540260347649856,20.395198378673317,39.0677371580014,6.419050588510406],[1.1765224288358156,14.959901295496607,15.153785141447079,0,14.351811051379219,27.231867453952585,0,27.126112628888688],[0,17.079238203988417,0,0,2.6874923534929245,0,0,80.23326944251865]]

pedersen volatility

Provisional volatility

55.23percentage 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=[[2.0422480318029463,5.549925949021747,1.3329176085431444,19.038896250682047,6.1540260347649856,20.395198378673317,39.0677371580014,6.419050588510406],[1.1765224288358156,14.959901295496607,15.153785141447079,0,14.351811051379219,27.231867453952585,0,27.126112628888688],[0,17.079238203988417,0,0,2.6874923534929245,0,0,80.23326944251865]]

pedersen volatility

Provisional volatility

57.1percentage 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=[[2.0422480318029463,5.549925949021747,1.3329176085431444,19.038896250682047,6.1540260347649856,20.395198378673317,39.0677371580014,6.419050588510406],[1.1765224288358156,14.959901295496607,15.153785141447079,0,14.351811051379219,27.231867453952585,0,27.126112628888688],[0,17.079238203988417,0,0,2.6874923534929245,0,0,80.23326944251865]]

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. “TLALMANALCO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-15-104. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S7c08a953c5, mexico--Sa305ab80a8, mexico--Sb2895afd37.