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

Office briefing

SAN IGNACIO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SAN IGNACIO / SINALOA · municipal · Municipal governmentMX-M-25-16

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
SAN IGNACIO / SINALOA
Next election
2027-06-06
Linked upcoming event
next-3ee80349620ce0aaf3e93bf4
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

  • MORENA62.2%
  • PAN_PRI_PRD_PAS20.7%
  • PT4.8%
  • PVEM4.3%
  • PES1.2%
  • MC1.2%
  • PAN0.0%
  • PRI0.0%
  • PRD0.0%
  • PAS0.0%
  • PVEM_MORENA0.0%
  • CAND_IND10.0%
  • CAND_IND20.0%
  • CAND_IND30.0%
Results for event-6632a00b34eb4d99dc0bf1a1
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/S195d7f6f2b/20245,76762.2%UnknownRecorded
PAN_PRI_PRD_PASmexico/S195d7f6f2b/20241,91720.7%UnknownRecorded
PTmexico/S195d7f6f2b/20244464.8%UnknownRecorded
PVEMmexico/S195d7f6f2b/20243954.3%UnknownRecorded
PESmexico/S195d7f6f2b/20241101.2%UnknownRecorded
MCmexico/S195d7f6f2b/20241071.2%UnknownRecorded
PANmexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PRImexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PRDmexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PASmexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PVEM_MORENAmexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND1mexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND2mexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND3mexico/S195d7f6f2b/20240 (recorded zero)0% (recorded zero)UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PES48.2%
  • PVEM19.8%
  • PRI17.6%
  • CC_PAS_MORENA6.6%
  • PAN1.2%
  • FXM0.7%
  • MC0.6%
  • PRD0.3%
Results for event-31bc203c153eeb3ef7848617
Label / candidateParty codeVotesShareSeatsStatus
PESmexico/S114be45d97/20214,87348.2%UnknownRecorded
PVEMmexico/S114be45d97/20212,00719.8%UnknownRecorded
PRImexico/S114be45d97/20211,78317.6%UnknownRecorded
CC_PAS_MORENAmexico/S114be45d97/20216676.6%UnknownRecorded
PANmexico/S114be45d97/20211221.2%UnknownRecorded
FXMmexico/S114be45d97/2021730.7%UnknownRecorded
MCmexico/S114be45d97/2021600.6%UnknownRecorded
PRDmexico/S114be45d97/2021270.3%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PVEM54.5%
  • PAN_PRD_MC_PAS18.2%
  • PT_MORENA_ES10.7%
  • PANAL4.2%
  • PRI2.9%
  • PAIS0.5%
Results for event-d6315c844c65baf7e19fb394
Label / candidateParty codeVotesShareSeatsStatus
PVEMmexico/S315d68b9c9/20185,24654.5%UnknownRecorded
PAN_PRD_MC_PASmexico/S315d68b9c9/20181,75218.2%UnknownRecorded
PT_MORENA_ESmexico/S315d68b9c9/20181,02910.7%UnknownRecorded
PANALmexico/S315d68b9c9/20184024.2%UnknownRecorded
PRImexico/S315d68b9c9/20182832.9%UnknownRecorded
PAISmexico/S315d68b9c9/2018500.5%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

0 (recorded zero)0–100 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=44.04026538549532, oldest_gap=39.87674047021228, previous_gap=29.816895547232626

pedersen volatility

Provisional volatility

71.67percentage 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=[[0,0,0,5.101807366735301,4.518416838252116,1.2239762068176618,65.9688858384809,23.186913749714023],[1.2692467748647525,18.549729504785684,0.2808988764044944,0,20.880149812734082,0.6242197253433208,0,58.39575530586767],[0,3.2298561972152475,0,0,59.872175302442365,0,0,36.89796850034239]]

pedersen volatility

Provisional volatility

38.99percentage 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=[[0,0,0,5.101807366735301,4.518416838252116,1.2239762068176618,65.9688858384809,23.186913749714023],[1.2692467748647525,18.549729504785684,0.2808988764044944,0,20.880149812734082,0.6242197253433208,0,58.39575530586767],[0,3.2298561972152475,0,0,59.872175302442365,0,0,36.89796850034239]]

pedersen volatility

Provisional volatility

55.33percentage 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=[[0,0,0,5.101807366735301,4.518416838252116,1.2239762068176618,65.9688858384809,23.186913749714023],[1.2692467748647525,18.549729504785684,0.2808988764044944,0,20.880149812734082,0.6242197253433208,0,58.39575530586767],[0,3.2298561972152475,0,0,59.872175302442365,0,0,36.89796850034239]]

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. “SAN IGNACIO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-25-16. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S195d7f6f2b, mexico--S114be45d97, mexico--S315d68b9c9.