Office briefing

LOS RÍOS — Prefect

Tracked current office. Identifiers stay separate from display names.

Ecuador · LOS RÍOS / LOS RÍOS · regional · PrefectEC-P-12

Read the complete original research briefing

1. What office, where, and when is the next election?

Geography: LOS RÍOS / LOS RÍOS
Next election: 2026-11-29
Linked upcoming event: next-bc719e17bdc7b793a1bff4e2
Registry qualification: Qualified in source register

2. How certain is that date?

2026-11-29 is formally called. Day precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2023-02-05

Ordinary · Legal certification not established · valid votes

PARTIDO SOCIAL CRISTIANO37.7%
UNIDOS POR LOS RÍOS32.1%
RC5-RETO 3324.5%
PARTIDO AVANZA3.0%
MACHETE Y GARABATO2.6%

Results for event-6a97a1adaa30f455bbb62304
Label / candidate	Party code	Votes	Share	Seats	Status
PARTIDO SOCIAL CRISTIANO · JONNY TERAN	32ecuador/Sa5c026518f/2023	176,328	37.7%	1	Recorded
UNIDOS POR LOS RÍOS · EDUARDO MENDOZA PALMA	1022ecuador/Sa5c026518f/2023	150,207	32.1%	0 (recorded zero)	Recorded
RC5-RETO 33 · HUMBERTO ALVARADO	1324ecuador/Sa5c026518f/2023	114,808	24.5%	0 (recorded zero)	Recorded
PARTIDO AVANZA · VANESA LEON CACERES	101ecuador/Sa5c026518f/2023	14,096	3%	0 (recorded zero)	Recorded
MACHETE Y GARABATO · LEANDRO ULLON RODRIGUEZ	1452ecuador/Sa5c026518f/2023	12,252	2.6%	0 (recorded zero)	Recorded

2019-03-24

Ordinary · Legal certification not established · valid votes

PARTIDO SOCIAL CRISTIANO26.3%
CREO - FE24.3%
MOVIMIENTO ALIANZA PAIS, PATRIA ALTIVA I SOBERANA17.0%
MOVIMIENTO DEMOCRACIA SÍ13.8%
MOVIMIENTO F. COMPROMISO SOCIAL11.5%
PARTIDO SOCIEDAD PATRIOTICA 21 DE ENERO5.0%
PARTIDO ADELANTE ECUATORIANO ADELANTE2.1%

Results for event-706a8a4dc2448c9d0feec0b3
Label / candidate	Party code	Votes	Share	Seats	Status
PARTIDO SOCIAL CRISTIANO · JONNY TERAN SALCEDO	1ecuador/Sed7b513864/2019	115,842	26.3%	1	Recorded
CREO - FE · PATRICIO MENDOZA	659ecuador/Sed7b513864/2019	106,888	24.3%	0 (recorded zero)	Recorded
MOVIMIENTO ALIANZA PAIS, PATRIA ALTIVA I SOBERANA · JUAN CARLOS TROYA	13ecuador/Sed7b513864/2019	74,819	17%	0 (recorded zero)	Recorded
MOVIMIENTO DEMOCRACIA SÍ · HECTOR HURTADO	198ecuador/Sed7b513864/2019	60,669	13.8%	0 (recorded zero)	Recorded
MOVIMIENTO F. COMPROMISO SOCIAL · HUMBERTO ALVARADO ESPINEL	148ecuador/Sed7b513864/2019	50,573	11.5%	0 (recorded zero)	Recorded
PARTIDO SOCIEDAD PATRIOTICA 21 DE ENERO · GALO LARA YEPEZ	3ecuador/Sed7b513864/2019	21,826	5%	0 (recorded zero)	Recorded
PARTIDO ADELANTE ECUATORIANO ADELANTE · MARIA ELENA GOMEZ VERDUGA	158ecuador/Sed7b513864/2019	9,155	2.1%	0 (recorded zero)	Recorded

2014-02-23

Ordinary · Legal certification not established · valid votes

MOVIMIENTO ALIANZA PAIS61.2%
PSC-PSP-CREO-PRIAN-PRE-SUMA17.4%
PARTIDO AVANZA14.5%
PARTIDO MOVIMIENTO POPULAR DEMOCRATICO3.9%
PARTIDO SOCIALISTA FRENTE AMPLIO2.9%

Results for event-5c2fbe1cf9cec24953456bf5
Label / candidate	Party code	Votes	Share	Seats	Status
MOVIMIENTO ALIANZA PAIS · TROYA FUERTES MARCO STALIN	3ecuador/S09da2a23f3/2014	237,414	61.2%	1	Recorded
PSC-PSP-CREO-PRIAN-PRE-SUMA · ROSADO LEON GISSEL ILIANA	12021ecuador/S09da2a23f3/2014	67,601	17.4%	0 (recorded zero)	Recorded
PARTIDO AVANZA · LOPEZ ZAVALA FABIAN FERNANDO	6ecuador/S09da2a23f3/2014	56,399	14.5%	0 (recorded zero)	Recorded
PARTIDO MOVIMIENTO POPULAR DEMOCRATICO · CAMPOZANO BERMEO SIXTO GUILLERMO DAVID	2ecuador/S09da2a23f3/2014	15,259	3.9%	0 (recorded zero)	Recorded
PARTIDO SOCIALISTA FRENTE AMPLIO · CASTRO GUTIERREZ ROBERTO ALEX	10ecuador/S09da2a23f3/2014	11,277	2.9%	0 (recorded zero)	Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

58.30–100 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=5.585097853069655, oldest_gap=43.77187781930661, previous_gap=2.0360550467060214

pedersen volatility

Provisional volatility

17.01percentage points

Grouped Pedersen lower bound (percentage points). Six named standalone categories in CNE returns, including explicit short/expanded CREO, SUMA and Alianza PAIS labels. Mixed alliances, successor movements and other parties stay Other. This does not attribute Revolución Ciudadana votes to Alianza PAIS. Multi-mark and otherwise ineligible histories remain excluded. 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=["PSC","Avanza","Pachakutik","CREO","SUMA","Alianza PAIS","Other"], interval=Latest interval, vectors=[[37.70181594257747,3.0139557956000864,0,0,0,0,59.28422826182244],[26.341376895300293,0,0,0,0,17.013134078567987,56.64548902613172],[0,14.537698156978992,0,0,0,61.197061476994456,24.26524036602655]]

pedersen volatility

Provisional volatility

58.72percentage points

Comparison status: Previous interval

Method pedersen.grouped.v1. Inputs: groups=["PSC","Avanza","Pachakutik","CREO","SUMA","Alianza PAIS","Other"], interval=Previous interval, vectors=[[37.70181594257747,3.0139557956000864,0,0,0,0,59.28422826182244],[26.341376895300293,0,0,0,0,17.013134078567987,56.64548902613172],[0,14.537698156978992,0,0,0,61.197061476994456,24.26524036602655]]

pedersen volatility

Provisional volatility

37.87percentage points

Comparison status: Both intervals mean

Method pedersen.grouped.v1. Inputs: groups=["PSC","Avanza","Pachakutik","CREO","SUMA","Alianza PAIS","Other"], interval=Both intervals mean, vectors=[[37.70181594257747,3.0139557956000864,0,0,0,0,59.28422826182244],[26.341376895300293,0,0,0,0,17.013134078567987,56.64548902613172],[0,14.537698156978992,0,0,0,61.197061476994456,24.26524036602655]]

Source-reported control: Johnny Terán Salcedo; Primary prefect association directory; page undated; retrieved 12 Sep 2026; Current party affiliation unverified; older biography labels are not copied to a successor. Primary prefect association directory; page undated

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.

Electoral register observations

Dated elector counts stay distinct from turnout and are not summed across overlapping contests.

As of

Electors

Notes

2026-08-11

711,795

Dated CNE administrative observation; not historical turnout. July count, difference and spending limit are retained separately.

{
  "call_source_id": "SA40-EC-CALL",
  "cne_canton": null,
  "cne_parish": null,
  "cne_province": 12,
  "election_date": "2026-11-29",
  "electors_august": 711795,
  "jurisdiction_id": "EC-P-12",
  "name": "LOS RÍOS",
  "office": "Prefect",
  "precinct_rows": [
    2266,
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  "record_type": "official_electoral_register",
  "register_pdf_page": 7,
  "register_source_id": "SA40-EC-CALL",
  "snapshot": "2026-08-11",
  "source_id": "SA40-EC-DISTRIBUTION"
}

6. Polling context

No local poll supplied.

7. Unresolved issues and sources

Council and parish votes before 2023 are candidate marks; 2023 is a closed-list ballot. Do not compare these vote shares as a continuous series. The 29 November 2026 ordinary cohort is reconciled to the CNE register. August precinct-distribution electors are a dated administrative count, not historical turnout or votes. Territorial boundary comparability, intervening outcomes and current control remain separate checks. The ordinary register is reconciled: 23 prefectures, 222 mayoralties, 222 municipal councils and 825 parish boards match the signed July 2026 call/list and August CNE codes. Borbón’s mayor/council and Miss Ecuador’s parish board are separate March 2027 first contests. Historical boundary comparability and some new-parish final returns remain open. Calacalí has final completion evidence but only preliminary rounded shares and secondary seat affiliations. Six first-election party vectors and elected rosters are recovered for the four 2024 parishes and Sevilla Don Bosco in 2025. Four small ballot-total discrepancies remain explicit. Shuar Pastaza remains preliminary. Fifteen July/August parish electorate differences are retained as dated observations.

Sources

Ecuador: https://www.cne.gob.ec/download/resultados-electorales-2023/?wpdmdl=39834 · rights unknown
Ecuador: https://www.cne.gob.ec/download/resultados-dignidad-vocales-de-juntas-parroquiales-2019/?wpdmdl=20971 · rights unknown
Ecuador: https://www.cne.gob.ec/download/resultados-a-nivel-parroquial-2014/?wpdmdl=21133 · rights unknown
Ecuador: https://www.cne.gob.ec/distributivos-de-electores-2027/ · rights unknown
Ecuador: CNE Ecuador — ecuador_2023.zip · rights unknown
Ecuador: CNE Ecuador — ec_candidatos-2023.dat · rights unknown
Ecuador: CNE Ecuador — ec_resultados-dignidad-vocales-de-juntas-parroquiales-2019.dat · rights unknown
Ecuador: CNE Ecuador — ec_candidatos-2019.dat · rights unknown
Ecuador: CNE Ecuador — ecuador_2014.sav · rights unknown
Ecuador: CNE Ecuador — ec_candidatos-2014.dat · rights unknown
Ecuador: CNE 2027 precinct and electorate distribution, cutoff 11 August 2026 · rights unknown
Ecuador: CNE resolution PLE-CNE-1-31-7-2026: ordinary election call for 29 November 2026 · rights unknown

Cite this record

Center for Digital Democracy. “LOS RÍOS — Prefect.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/EC-P-12. Sources: ecuador--url-e0444af67a46db0c3c537d63, ecuador--url-afbb9a85cc78f50c79da76d6, ecuador--url-5b82aaaec7b8c8ce1fd49557, ecuador--url-e67940bdf0f1387ed11ac338, ecuador--Sa5c026518f, ecuador--Sadcc145662, ecuador--Sed7b513864, ecuador--Sf4e4f8e986, ecuador--S09da2a23f3, ecuador--S5c50f97474, ecuador--SA40-EC-DISTRIBUTION, ecuador--SA40-EC-CALL.