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

Office briefing

ZARAGOZA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · ZARAGOZA / SAN LUIS POTOSI · municipal · Municipal governmentMX-M-24-56

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
ZARAGOZA / SAN LUIS POTOSI
Next election
2027-06-06
Linked upcoming event
next-7b8ccf02aff967016905b0aa
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_MORENA44.0%
  • MC34.6%
  • PRI6.0%
  • CP4.3%
  • PAN3.4%
  • PES2.4%
  • ML1.0%
Results for event-f4833700050e9328ae9ac3b8
Label / candidateParty codeVotesShareSeatsStatus
PVEM_PT_MORENAmexico/S6485b7dff7/20245,93544%UnknownRecorded
MCmexico/S6485b7dff7/20244,65934.6%UnknownRecorded
PRImexico/S6485b7dff7/20248146%UnknownRecorded
CPmexico/S6485b7dff7/20245744.3%UnknownRecorded
PANmexico/S6485b7dff7/20244613.4%UnknownRecorded
PESmexico/S6485b7dff7/20243232.4%UnknownRecorded
MLmexico/S6485b7dff7/20241361%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • RSP20.9%
  • PT_PVEM20.0%
  • PMC14.8%
  • PRI13.5%
  • PCP12.5%
  • PRD4.2%
  • NASLP3.6%
  • PES3.0%
  • MORENA2.7%
  • FXM0.7%
  • PAN0.4%
Results for event-a5779dd999ef0061ecf301a3
Label / candidateParty codeVotesShareSeatsStatus
RSPmexico/S5fc00b8fd4/20212,70520.9%UnknownRecorded
PT_PVEMmexico/S5fc00b8fd4/20212,58820%UnknownRecorded
PMCmexico/S5fc00b8fd4/20211,91214.8%UnknownRecorded
PRImexico/S5fc00b8fd4/20211,74213.5%UnknownRecorded
PCPmexico/S5fc00b8fd4/20211,62412.5%UnknownRecorded
PRDmexico/S5fc00b8fd4/20215434.2%UnknownRecorded
NASLPmexico/S5fc00b8fd4/20214693.6%UnknownRecorded
PESmexico/S5fc00b8fd4/20213853%UnknownRecorded
MORENAmexico/S5fc00b8fd4/20213502.7%UnknownRecorded
FXMmexico/S5fc00b8fd4/2021880.7%UnknownRecorded
PANmexico/S5fc00b8fd4/2021480.4%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRI_CP35.7%
  • PRD30.6%
  • PVEM_PANAL25.1%
  • PT_MORENA_ES3.3%
  • PAN_MC1.1%
Results for event-9b7d5736ee73fa74079c0871
Label / candidateParty codeVotesShareSeatsStatus
PRI_CPmexico/S365ca280fe/20184,70435.7%UnknownRecorded
PRDmexico/S365ca280fe/20184,02630.6%UnknownRecorded
PVEM_PANALmexico/S365ca280fe/20183,30425.1%UnknownRecorded
PT_MORENA_ESmexico/S365ca280fe/20184303.3%UnknownRecorded
PAN_MCmexico/S365ca280fe/20181511.1%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

66.230–100 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=9.889939544256706, oldest_gap=5.374554102259218, previous_gap=0.9394572025052206

pedersen volatility

Provisional volatility

39.3percentage 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=[[3.5730894434971323,6.309099364439621,0,0,0,36.11068051464889,0,54.00713067741435],[0.3854183394893207,13.987473903966597,4.36004496547294,0,0,0,2.8103420587762966,78.45672073229485],[0,0,31.914387633769323,0,0,0,0,68.08561236623068]]

pedersen volatility

Provisional volatility

27.55percentage 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=[[3.5730894434971323,6.309099364439621,0,0,0,36.11068051464889,0,54.00713067741435],[0.3854183394893207,13.987473903966597,4.36004496547294,0,0,0,2.8103420587762966,78.45672073229485],[0,0,31.914387633769323,0,0,0,0,68.08561236623068]]

pedersen volatility

Provisional volatility

33.43percentage 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=[[3.5730894434971323,6.309099364439621,0,0,0,36.11068051464889,0,54.00713067741435],[0.3854183394893207,13.987473903966597,4.36004496547294,0,0,0,2.8103420587762966,78.45672073229485],[0,0,31.914387633769323,0,0,0,0,68.08561236623068]]

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. “ZARAGOZA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-24-56. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S6485b7dff7, mexico--S5fc00b8fd4, mexico--S365ca280fe.