Office briefing

SAN AGUSTIN AMATENGO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · SAN AGUSTIN AMATENGO / OAXACA · municipal · Municipal governmentMX-M-20-77

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 AGUSTIN AMATENGO / OAXACA
Next election: 2027-06-06
Linked upcoming event: next-e41310fd9438070bc34c51f1
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_PT_PUP_147.1%
C_PVEM_MORENA_FXMO_125.1%
PRI21.2%
MC0.6%
NAO0.2%

Results for event-7515c7ed883b6b0344ca3a72
Label / candidate	Party code	Votes	Share	Seats	Status
C_PT_PUP_1	mexico/S31904a5804/2024	450	47.1%	Unknown	Recorded
C_PVEM_MORENA_FXMO_1	mexico/S31904a5804/2024	240	25.1%	Unknown	Recorded
PRI	mexico/S31904a5804/2024	203	21.2%	Unknown	Recorded
MC	mexico/S31904a5804/2024	6	0.6%	Unknown	Recorded
NAO	mexico/S31904a5804/2024	2	0.2%	Unknown	Recorded

2021

Special · Legal certification not established · candidate marks

PAN_PRI_PRD32.3%
PUP23.7%
PT22.8%
MORENA14.6%
RSP2.3%
NAO0.5%
PES0.2%

Results for event-ecdf1ea7178d45b6681ae364
Label / candidate	Party code	Votes	Share	Seats	Status
PAN_PRI_PRD	mexico/S9d6c0dc68f/2021	330	32.3%	Unknown	Recorded
PUP	mexico/S9d6c0dc68f/2021	242	23.7%	Unknown	Recorded
PT	mexico/S9d6c0dc68f/2021	233	22.8%	Unknown	Recorded
MORENA	mexico/S9d6c0dc68f/2021	149	14.6%	Unknown	Recorded
RSP	mexico/S9d6c0dc68f/2021	23	2.3%	Unknown	Recorded
NAO	mexico/S9d6c0dc68f/2021	5	0.5%	Unknown	Recorded
PES	mexico/S9d6c0dc68f/2021	2	0.2%	Unknown	Recorded

2018

Special · Legal certification not established · candidate marks

PT_MORENA_ES30.4%
PRI_PVEM_PANAL28.3%
PAN_PRD_MC19.0%
PUP15.6%

Results for event-112e18f1af7b69b10d371ccc
Label / candidate	Party code	Votes	Share	Seats	Status
PT_MORENA_ES	mexico/S2352deca15/2018	303	30.4%	Unknown	Recorded
PRI_PVEM_PANAL	mexico/S2352deca15/2018	282	28.3%	Unknown	Recorded
PAN_PRD_MC	mexico/S2352deca15/2018	189	19%	Unknown	Recorded
PUP	mexico/S2352deca15/2018	156	15.6%	Unknown	Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

15.530–100 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=23.30743618201998, oldest_gap=2.2580645161290285, previous_gap=8.943089430894311

pedersen volatility

Provisional volatility

38.82percentage 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=[[0,22.530521642619313,0,0,0,0.6659267480577137,0,76.80355160932297],[0,0,0,23.678861788617887,0,0,15.142276422764228,61.17886178861789],null]

pedersen volatility

Withheld volatility

Unknownpercentage points

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=[[0,22.530521642619313,0,0,0,0.6659267480577137,0,76.80355160932297],[0,0,0,23.678861788617887,0,0,15.142276422764228,61.17886178861789],null]

pedersen volatility

Withheld volatility

Unknownpercentage points

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=[[0,22.530521642619313,0,0,0,0.6659267480577137,0,76.80355160932297],[0,0,0,23.678861788617887,0,0,15.142276422764228,61.17886178861789],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

Mexico: https://sicee-api.ine.mx/api/v1/local/cards/getTarjOnceTablasamunicipiosLoc · rights unknown
Mexico: mx_returns_AYUN_20_77_2024.json · rights unknown
Mexico: mx_returns_AYUN_20_77_2021.json · rights unknown
Mexico: mx_returns_AYUN_20_77_2018.json · rights unknown

Cite this record

Center for Digital Democracy. “SAN AGUSTIN AMATENGO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-77. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S31904a5804, mexico--S9d6c0dc68f, mexico--S2352deca15.