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

Office briefing

SANTO DOMINGO ARMENTA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SANTO DOMINGO ARMENTA / OAXACA · municipal · Municipal governmentMX-M-20-506

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
SANTO DOMINGO ARMENTA / OAXACA
Next election
2027-06-06
Linked upcoming event
next-f94c5381b6e4c60dd48bd9d1
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

  • PRI41.2%
  • MORENA25.7%
  • PVEM18.0%
  • PT9.3%
  • MC0.9%
  • PRD0.2%
  • PUP0.2%
Results for event-3100616ab7d7c09fc902314d
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/Sb718ee103e/202463741.2%UnknownRecorded
MORENAmexico/Sb718ee103e/202439725.7%UnknownRecorded
PVEMmexico/Sb718ee103e/202427818%UnknownRecorded
PTmexico/Sb718ee103e/20241449.3%UnknownRecorded
MCmexico/Sb718ee103e/2024140.9%UnknownRecorded
PRDmexico/Sb718ee103e/202430.2%UnknownRecorded
PUPmexico/Sb718ee103e/202430.2%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PRD28.5%
  • PRI27.5%
  • PVEM13.8%
  • PES11.1%
  • MORENA7.9%
  • NAO5.2%
  • PAN1.6%
  • RSP0.4%
  • PT0.2%
  • PUP0.1%
Results for event-08992408f786f18a10a61987
Label / candidateParty codeVotesShareSeatsStatus
PRDmexico/S0e04990bd6/202148328.5%UnknownRecorded
PRImexico/S0e04990bd6/202146627.5%UnknownRecorded
PVEMmexico/S0e04990bd6/202123513.8%UnknownRecorded
PESmexico/S0e04990bd6/202118811.1%UnknownRecorded
MORENAmexico/S0e04990bd6/20211347.9%UnknownRecorded
NAOmexico/S0e04990bd6/2021885.2%UnknownRecorded
PANmexico/S0e04990bd6/2021281.6%UnknownRecorded
RSPmexico/S0e04990bd6/202160.4%UnknownRecorded
PTmexico/S0e04990bd6/202130.2%UnknownRecorded
PUPmexico/S0e04990bd6/202120.1%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRI_PVEM_PANAL34.7%
  • PAN_PRD_MC26.0%
  • PMR13.2%
  • PT_MORENA_ES11.4%
  • PSD7.6%
  • PUP1.9%
Results for event-93a1fe218f1ca28d60fdf939
Label / candidateParty codeVotesShareSeatsStatus
PRI_PVEM_PANALmexico/S6d0d57503d/201855834.7%UnknownRecorded
PAN_PRD_MCmexico/S6d0d57503d/201841826%UnknownRecorded
PMRmexico/S6d0d57503d/201821313.2%UnknownRecorded
PT_MORENA_ESmexico/S6d0d57503d/201818411.4%UnknownRecorded
PSDmexico/S6d0d57503d/20181237.6%UnknownRecorded
PUPmexico/S6d0d57503d/2018311.9%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

45.070–100 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=16.260162601626018, oldest_gap=9.168303863785198, previous_gap=1.0410287813839574

pedersen volatility

Provisional volatility

48.28percentage 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=[[0,43.15718157181572,0.2032520325203252,9.75609756097561,18.834688346883468,0.948509485094851,26.897018970189702,0.2032520325203252],[1.7146356399265157,28.53643600734844,29.577464788732396,0.1837109614206981,14.390691977954685,0,8.205756276791181,17.391304347826082],null]

pedersen volatility

Withheld volatility

Unknownpercentage 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 · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[0,43.15718157181572,0.2032520325203252,9.75609756097561,18.834688346883468,0.948509485094851,26.897018970189702,0.2032520325203252],[1.7146356399265157,28.53643600734844,29.577464788732396,0.1837109614206981,14.390691977954685,0,8.205756276791181,17.391304347826082],null]

pedersen volatility

Withheld volatility

Unknownpercentage 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 · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0,43.15718157181572,0.2032520325203252,9.75609756097561,18.834688346883468,0.948509485094851,26.897018970189702,0.2032520325203252],[1.7146356399265157,28.53643600734844,29.577464788732396,0.1837109614206981,14.390691977954685,0,8.205756276791181,17.391304347826082],null]

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. “SANTO DOMINGO ARMENTA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-506. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Sb718ee103e, mexico--S0e04990bd6, mexico--S6d0d57503d.