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

Office briefing

EL ARENAL — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · EL ARENAL / HIDALGO · municipal · Municipal governmentMX-M-13-19

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
EL ARENAL / HIDALGO
Next election
2027-06-06
Linked upcoming event
next-9d56e2150d771bb5664f5d24
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

  • PRI36.4%
  • C_MORENA_NAH34.7%
  • PT12.0%
  • PVEM10.3%
  • MC2.5%
  • PRD0.3%
Results for event-2e50bd6ab634e3d879b22906
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/S74f9bca8fb/20243,77436.4%UnknownRecorded
C_MORENA_NAHmexico/S74f9bca8fb/20243,59334.7%UnknownRecorded
PTmexico/S74f9bca8fb/20241,24612%UnknownRecorded
PVEMmexico/S74f9bca8fb/20241,06410.3%UnknownRecorded
MCmexico/S74f9bca8fb/20242582.5%UnknownRecorded
PRDmexico/S74f9bca8fb/2024350.3%UnknownRecorded

2020

Special · Legal certification not established · candidate marks

  • PRI32.4%
  • MC22.5%
  • MORENA15.6%
  • PT14.9%
  • PANALH4.2%
  • PAN_PRD4.0%
  • MAS_X_HIDALGO3.0%
  • PODEMOS1.1%
  • ESH0.7%
Results for event-5ad22f50834a9a63891c2a3d
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/Se95c5835a8/20202,78832.4%UnknownRecorded
MCmexico/Se95c5835a8/20201,93522.5%UnknownRecorded
MORENAmexico/Se95c5835a8/20201,34315.6%UnknownRecorded
PTmexico/Se95c5835a8/20201,28314.9%UnknownRecorded
PANALHmexico/Se95c5835a8/20203634.2%UnknownRecorded
PAN_PRDmexico/Se95c5835a8/20203404%UnknownRecorded
MAS_X_HIDALGOmexico/Se95c5835a8/20202543%UnknownRecorded
PODEMOSmexico/Se95c5835a8/2020921.1%UnknownRecorded
ESHmexico/Se95c5835a8/2020590.7%UnknownRecorded

2016

Special · Legal certification not established · candidate marks

  • PRI43.3%
  • PAN39.6%
  • PANAL7.2%
  • MORENA3.2%
  • ES2.5%
  • MC1.3%
  • PT0.5%
  • PVEM0.4%
Results for event-a4a2d8db3edad6acc660b817
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/Sc43666aa1b/20163,82043.3%UnknownRecorded
PANmexico/Sc43666aa1b/20163,49439.6%UnknownRecorded
PANALmexico/Sc43666aa1b/20166397.2%UnknownRecorded
MORENAmexico/Sc43666aa1b/20162833.2%UnknownRecorded
ESmexico/Sc43666aa1b/20162202.5%UnknownRecorded
MCmexico/Sc43666aa1b/20161111.3%UnknownRecorded
PTmexico/Sc43666aa1b/2016470.5%UnknownRecorded
PVEMmexico/Sc43666aa1b/2016390.4%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

77.540–100 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=1.8154463390170505, oldest_gap=3.767479486883161, previous_gap=10.086319025659215

pedersen volatility

Provisional volatility

38.85percentage 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=[[0,37.85356068204614,0.3510531594784353,12.497492477432298,10.672016048144433,2.587763289869609,0,36.038114343029086],[0,32.96677308738323,0,15.170864372708998,0,22.880454061724016,15.880335816483386,13.101572661700365],[40.379059285796835,44.146538772679996,0,0.5431642205015601,0.45071073616086904,1.2827920952270888,3.2705420085519474,9.927192881081705]]

pedersen volatility

Provisional volatility

52.01percentage 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=[[0,37.85356068204614,0.3510531594784353,12.497492477432298,10.672016048144433,2.587763289869609,0,36.038114343029086],[0,32.96677308738323,0,15.170864372708998,0,22.880454061724016,15.880335816483386,13.101572661700365],[40.379059285796835,44.146538772679996,0,0.5431642205015601,0.45071073616086904,1.2827920952270888,3.2705420085519474,9.927192881081705]]

pedersen volatility

Provisional volatility

45.43percentage 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=[[0,37.85356068204614,0.3510531594784353,12.497492477432298,10.672016048144433,2.587763289869609,0,36.038114343029086],[0,32.96677308738323,0,15.170864372708998,0,22.880454061724016,15.880335816483386,13.101572661700365],[40.379059285796835,44.146538772679996,0,0.5431642205015601,0.45071073616086904,1.2827920952270888,3.2705420085519474,9.927192881081705]]

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. “EL ARENAL — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-13-19. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S74f9bca8fb, mexico--Se95c5835a8, mexico--Sc43666aa1b.