Office briefing

COACALCO DE BERRIOZABAL — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · COACALCO DE BERRIOZABAL / MEXICO · municipal · Municipal governmentMX-M-15-20

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: COACALCO DE BERRIOZABAL / MEXICO
Next election: 2027-06-06
Linked upcoming event: next-db06b87273aa8fc44efe556a
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

PAN_PRI_PRD_NAEM45.9%
PVEM_PT_MORENA42.9%
MC8.8%

Results for event-ae89ce1a8877e3d695e7bd8d
Label / candidate	Party code	Votes	Share	Seats	Status
PAN_PRI_PRD_NAEM	mexico/S5a43d963f9/2024	72,651	45.9%	Unknown	Recorded
PVEM_PT_MORENA	mexico/S5a43d963f9/2024	67,913	42.9%	Unknown	Recorded
MC	mexico/S5a43d963f9/2024	13,996	8.8%	Unknown	Recorded

2021

Special · Legal certification not established · candidate marks

PAN_PRI_PRD37.3%
PT_MORENA_NAEM36.8%
PVEM8.2%
MC5.4%
RSP4.8%
FXM3.1%
PES2.1%

Results for event-54562318dcc601b1a0a7a858
Label / candidate	Party code	Votes	Share	Seats	Status
PAN_PRI_PRD	mexico/Sdf65167c9e/2021	44,471	37.3%	Unknown	Recorded
PT_MORENA_NAEM	mexico/Sdf65167c9e/2021	43,869	36.8%	Unknown	Recorded
PVEM	mexico/Sdf65167c9e/2021	9,749	8.2%	Unknown	Recorded
MC	mexico/Sdf65167c9e/2021	6,461	5.4%	Unknown	Recorded
RSP	mexico/Sdf65167c9e/2021	5,738	4.8%	Unknown	Recorded
FXM	mexico/Sdf65167c9e/2021	3,649	3.1%	Unknown	Recorded
PES	mexico/Sdf65167c9e/2021	2,463	2.1%	Unknown	Recorded

2018

Special · Legal certification not established · candidate marks

PT_MORENA_ES46.3%
PAN_PRD_MC26.9%
PRI15.8%
VR3.7%
PVEM2.9%
PANAL2.1%

Results for event-4c833d4c7cb2365ebba7e197
Label / candidate	Party code	Votes	Share	Seats	Status
PT_MORENA_ES	mexico/Se79aa24c0a/2018	71,428	46.3%	Unknown	Recorded
PAN_PRD_MC	mexico/Se79aa24c0a/2018	41,515	26.9%	Unknown	Recorded
PRI	mexico/Se79aa24c0a/2018	24,423	15.8%	Unknown	Recorded
VR	mexico/Se79aa24c0a/2018	5,641	3.7%	Unknown	Recorded
PVEM	mexico/Se79aa24c0a/2018	4,525	2.9%	Unknown	Recorded
PANAL	mexico/Se79aa24c0a/2018	3,298	2.1%	Unknown	Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

80.110–100 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=3.06547619047619, oldest_gap=19.83226148644169, previous_gap=0.5171821305841888

pedersen volatility

Provisional volatility

8.38percentage 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=[[0,0,0,0,0,9.055383022774327,0,90.94461697722568],[0,0,0,0,8.375429553264604,5.5506872852233675,0,86.07388316151201],[0,16.19240204203408,0,0,3.0000662998077305,0,0,80.8075316581582]]

pedersen volatility

Provisional volatility

16.19percentage points

Comparison status: Previous interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[0,0,0,0,0,9.055383022774327,0,90.94461697722568],[0,0,0,0,8.375429553264604,5.5506872852233675,0,86.07388316151201],[0,16.19240204203408,0,0,3.0000662998077305,0,0,80.8075316581582]]

pedersen volatility

Provisional volatility

12.28percentage points

Comparison status: Both intervals mean

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0,0,0,0,0,9.055383022774327,0,90.94461697722568],[0,0,0,0,8.375429553264604,5.5506872852233675,0,86.07388316151201],[0,16.19240204203408,0,0,3.0000662998077305,0,0,80.8075316581582]]

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_15_20_2024.json · rights unknown
Mexico: mx_returns_AYUN_15_20_2021.json · rights unknown
Mexico: mx_returns_AYUN_15_20_2018.json · rights unknown

Cite this record

Center for Digital Democracy. “COACALCO DE BERRIOZABAL — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-15-20. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S5a43d963f9, mexico--Sdf65167c9e, mexico--Se79aa24c0a.