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

Office briefing

GUSTAVO A. MADERO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · GUSTAVO A. MADERO / CIUDAD DE MEXICO · municipal · Municipal governmentMX-M-9-5

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
GUSTAVO A. MADERO / CIUDAD DE MEXICO
Next election
2027-06-06
Linked upcoming event
next-429d09cfb4de67b555baf637
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

  • PVEM_PT_MORENA55.4%
  • PAN_PRI_PRD32.7%
  • MC9.2%
Results for event-a6747fe4cb21b65843a8f0c4
Label / candidateParty codeVotesShareSeatsStatus
PVEM_PT_MORENAmexico/S6c9eb9a76f/2024406,43555.4%UnknownRecorded
PAN_PRI_PRDmexico/S6c9eb9a76f/2024239,69932.7%UnknownRecorded
MCmexico/S6c9eb9a76f/202467,1639.2%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PT_MORENA44.3%
  • PAN_PRI_PRD40.4%
  • PVEM2.8%
  • MC2.7%
  • PES1.7%
  • CAND_IND101.7%
  • FXM1.4%
  • RSP1.2%
  • ELIGE0.9%
Results for event-08ba21b09c0c5f658749648b
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENAmexico/S4a010ed2fb/2021233,28544.3%UnknownRecorded
PAN_PRI_PRDmexico/S4a010ed2fb/2021212,58340.4%UnknownRecorded
PVEMmexico/S4a010ed2fb/202114,5362.8%UnknownRecorded
MCmexico/S4a010ed2fb/202114,4452.7%UnknownRecorded
PESmexico/S4a010ed2fb/20219,2001.7%UnknownRecorded
CAND_IND10mexico/S4a010ed2fb/20219,0981.7%UnknownRecorded
FXMmexico/S4a010ed2fb/20217,1851.4%UnknownRecorded
RSPmexico/S4a010ed2fb/20216,1061.2%UnknownRecorded
ELIGEmexico/S4a010ed2fb/20214,6720.9%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PT_MORENA_ES48.9%
  • PAN_PRD_MC30.1%
  • PRI8.9%
  • PVEM4.3%
  • PH2.7%
  • PANAL2.1%
Results for event-48f526a6b858e9fbe10b28c5
Label / candidateParty codeVotesShareSeatsStatus
PT_MORENA_ESmexico/S2e76423089/2018352,58148.9%UnknownRecorded
PAN_PRD_MCmexico/S2e76423089/2018217,07330.1%UnknownRecorded
PRImexico/S2e76423089/201864,5178.9%UnknownRecorded
PVEMmexico/S2e76423089/201831,1714.3%UnknownRecorded
PHmexico/S2e76423089/201819,3782.7%UnknownRecorded
PANALmexico/S2e76423089/201814,8852.1%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

14.110–100 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=23.375396223452498, oldest_gap=19.369215485881316, previous_gap=4.050400109565452

pedersen volatility

Provisional volatility

6.59percentage 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=[[0,0,0,0,0,9.41585342430993,0,90.58414657569007],[0,0,0,0,2.8440061826221363,2.826201796090861,0,94.32979202128699],[0,9.221918082346466,0,0,4.455514183003266,0,0,86.32256773465026]]

pedersen volatility

Provisional volatility

10.83percentage 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=[[0,0,0,0,0,9.41585342430993,0,90.58414657569007],[0,0,0,0,2.8440061826221363,2.826201796090861,0,94.32979202128699],[0,9.221918082346466,0,0,4.455514183003266,0,0,86.32256773465026]]

pedersen volatility

Provisional volatility

8.71percentage 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=[[0,0,0,0,0,9.41585342430993,0,90.58414657569007],[0,0,0,0,2.8440061826221363,2.826201796090861,0,94.32979202128699],[0,9.221918082346466,0,0,4.455514183003266,0,0,86.32256773465026]]

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. “GUSTAVO A. MADERO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-9-5. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S6c9eb9a76f, mexico--S4a010ed2fb, mexico--S2e76423089.