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

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Office briefing

SANTIAGO TULANTEPEC DE LUGO GUERRERO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SANTIAGO TULANTEPEC DE LUGO GUERRERO / HIDALGO · municipal · Municipal governmentMX-M-13-56

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
SANTIAGO TULANTEPEC DE LUGO GUERRERO / HIDALGO
Next election
2027-06-06
Linked upcoming event
next-96a7e12b5d543e26da146d66
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

  • C_MORENA_NAH33.0%
  • PRI30.9%
  • CAND_IND817.1%
  • PVEM7.9%
  • MC2.9%
  • PRD2.0%
  • PT1.9%
Results for event-fd7e8e425ae8df18abbb6794
Label / candidateParty codeVotesShareSeatsStatus
C_MORENA_NAHmexico/Sf270a63ac9/20245,65933%UnknownRecorded
PRImexico/Sf270a63ac9/20245,29630.9%UnknownRecorded
CAND_IND8mexico/Sf270a63ac9/20242,93117.1%UnknownRecorded
PVEMmexico/Sf270a63ac9/20241,3537.9%UnknownRecorded
MCmexico/Sf270a63ac9/20244982.9%UnknownRecorded
PRDmexico/Sf270a63ac9/20243442%UnknownRecorded
PTmexico/Sf270a63ac9/20243281.9%UnknownRecorded

2020

Special · Legal certification not established · candidate marks

  • PRI27.9%
  • PODEMOS19.1%
  • ESH17.0%
  • PANALH10.8%
  • PAN_PRD8.8%
  • CAND_IND236.8%
  • CAND_IND223.5%
  • PT2.3%
  • MC0.5%
  • MAS_X_HIDALGO0.4%
  • PVEM0.3%
Results for event-f62ebb173815d6a03a006c4b
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/Scac9623aad/20203,68027.9%UnknownRecorded
PODEMOSmexico/Scac9623aad/20202,52219.1%UnknownRecorded
ESHmexico/Scac9623aad/20202,24717%UnknownRecorded
PANALHmexico/Scac9623aad/20201,42310.8%UnknownRecorded
PAN_PRDmexico/Scac9623aad/20201,1568.8%UnknownRecorded
CAND_IND23mexico/Scac9623aad/20208966.8%UnknownRecorded
CAND_IND22mexico/Scac9623aad/20204663.5%UnknownRecorded
PTmexico/Scac9623aad/20202972.3%UnknownRecorded
MCmexico/Scac9623aad/2020620.5%UnknownRecorded
MAS_X_HIDALGOmexico/Scac9623aad/2020530.4%UnknownRecorded
PVEMmexico/Scac9623aad/2020440.3%UnknownRecorded

2016

Special · Legal certification not established · candidate marks

  • PRI31.9%
  • PRD28.2%
  • PAN23.4%
  • PANAL5.5%
  • MC3.1%
  • MORENA2.9%
  • ES1.1%
  • PVEM1.0%
  • PT0.6%
Results for event-79fded42794dc28c4b5e9461
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/S85b0df375e/20164,06931.9%UnknownRecorded
PRDmexico/S85b0df375e/20163,60528.2%UnknownRecorded
PANmexico/S85b0df375e/20162,98723.4%UnknownRecorded
PANALmexico/S85b0df375e/20166995.5%UnknownRecorded
MCmexico/S85b0df375e/20164013.1%UnknownRecorded
MORENAmexico/S85b0df375e/20163652.9%UnknownRecorded
ESmexico/S85b0df375e/20161441.1%UnknownRecorded
PVEMmexico/S85b0df375e/20161251%UnknownRecorded
PTmexico/S85b0df375e/2016710.6%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

77.980–100 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=2.2122006216100942, oldest_gap=3.722124177763515, previous_gap=9.014479215319945

pedersen volatility

Provisional volatility

16.18percentage 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: Latest interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Latest interval, vectors=[[0,32.2749710524712,2.0964105064293985,1.9989030410140776,8.24547504418307,3.0349198610518617,0,52.34932049485039],[0,28.647049665265452,0,2.3120037365716954,0.3425190720846956,0.4826405106647984,0,68.21578701541335],[23.96117439435264,32.640782929568424,28.91865875180491,0.569549173752607,1.0027274185785335,3.2167495587999357,2.927964062249318,6.762393710893631]]

pedersen volatility

Provisional volatility

63.2percentage 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=[[0,32.2749710524712,2.0964105064293985,1.9989030410140776,8.24547504418307,3.0349198610518617,0,52.34932049485039],[0,28.647049665265452,0,2.3120037365716954,0.3425190720846956,0.4826405106647984,0,68.21578701541335],[23.96117439435264,32.640782929568424,28.91865875180491,0.569549173752607,1.0027274185785335,3.2167495587999357,2.927964062249318,6.762393710893631]]

pedersen volatility

Provisional volatility

39.69percentage 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=[[0,32.2749710524712,2.0964105064293985,1.9989030410140776,8.24547504418307,3.0349198610518617,0,52.34932049485039],[0,28.647049665265452,0,2.3120037365716954,0.3425190720846956,0.4826405106647984,0,68.21578701541335],[23.96117439435264,32.640782929568424,28.91865875180491,0.569549173752607,1.0027274185785335,3.2167495587999357,2.927964062249318,6.762393710893631]]

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. “SANTIAGO TULANTEPEC DE LUGO GUERRERO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-13-56. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sf270a63ac9, mexico--Scac9623aad, mexico--S85b0df375e.