Skip to observatory content

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

Office briefing

MONTALVO / LOS RÍOS — Mayor

Tracked current office. Identifiers stay separate from display names.

Ecuador · MONTALVO / LOS RÍOS / LOS RÍOS · municipal · MayorEC-M-12-710

Read the complete original research briefing

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.

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

Geography
MONTALVO / LOS RÍOS / LOS RÍOS
Next election
2026-11-29
Linked upcoming event
next-0908e45ca30b0ce40b9c6cd4
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

  • EL CAMBIO DE MONTALVO37.8%
  • PARTIDO SOCIAL CRISTIANO21.9%
  • UNIDOS POR LOS RIOS 1-3-4-17-20-21-23-2520.5%
  • RC5-RETO 3311.5%
  • MOVIMIENTO DE UNIDAD PLURINACIONAL PACHAKUTIK5.1%
  • PARTIDO UNIDAD POPULAR2.1%
  • MOVIMIENTO CRECER1.1%
Results for event-1d3a5c68b43a8481150dc8ce
Label / candidateParty codeVotesShareSeatsStatus
EL CAMBIO DE MONTALVO · EDUARDO TRONCOSO1176ecuador/Sa5c026518f/20236,18637.8%1Recorded
PARTIDO SOCIAL CRISTIANO · BELEN SILVA32ecuador/Sa5c026518f/20233,58221.9%0 (recorded zero)Recorded
UNIDOS POR LOS RIOS 1-3-4-17-20-21-23-25 · MARJORIE VELEZ HIDROVO1501ecuador/Sa5c026518f/20233,36520.5%0 (recorded zero)Recorded
RC5-RETO 33 · LUCIANO MOREJON1324ecuador/Sa5c026518f/20231,87811.5%0 (recorded zero)Recorded
MOVIMIENTO DE UNIDAD PLURINACIONAL PACHAKUTIK · VINSHELY GALLEGOS7ecuador/Sa5c026518f/20238405.1%0 (recorded zero)Recorded
PARTIDO UNIDAD POPULAR · ARNOLDO WILSON ROMERO RIVERA231ecuador/Sa5c026518f/20233472.1%0 (recorded zero)Recorded
MOVIMIENTO CRECER · ROSA ANGELICA GALLEGOS FRANCO257ecuador/Sa5c026518f/20231871.1%0 (recorded zero)Recorded

2019-03-24

Ordinary · Legal certification not established · valid votes

  • PARTIDO SOCIALISTA ECUATORIANO32.1%
  • PARTIDO SOCIAL CRISTIANO18.9%
  • CREO - FE18.6%
  • MOVIMIENTO LIBERTAD ES PUEBLO, LEP11.3%
  • MOVIMIENTO ALIANZA PAIS, PATRIA ALTIVA I SOBERANA7.2%
  • IZQUIERDA DEMOCRÁTICA3.4%
  • MOVIMIENTO F. COMPROMISO SOCIAL2.8%
  • PARTIDO SOCIEDAD PATRIOTICA 21 DE ENERO2.0%
  • UNION ECUATORIANA1.8%
  • UNIDAD POPULAR1.4%
  • MOVIMIENTO ECUATORIANO UNIDO0.5%
Results for event-c3c070f1eeded4f32b3f1d62
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO SOCIALISTA ECUATORIANO · OSCAR OSWALDO AGUILAR SOLIZ8ecuador/Sed7b513864/20194,99332.1%1Recorded
PARTIDO SOCIAL CRISTIANO · EDUARDO TRONCOSO1ecuador/Sed7b513864/20192,93818.9%0 (recorded zero)Recorded
CREO - FE · JOVANNY PAZMIÑO ESPIN659ecuador/Sed7b513864/20192,90218.6%0 (recorded zero)Recorded
MOVIMIENTO LIBERTAD ES PUEBLO, LEP · CESAR ANDRADE235ecuador/Sed7b513864/20191,75411.3%0 (recorded zero)Recorded
MOVIMIENTO ALIANZA PAIS, PATRIA ALTIVA I SOBERANA · MARTHA ELIZA ESTRADA GAROFALO13ecuador/Sed7b513864/20191,1287.2%0 (recorded zero)Recorded
IZQUIERDA DEMOCRÁTICA · NESTOR PINELA152ecuador/Sed7b513864/20195333.4%0 (recorded zero)Recorded
MOVIMIENTO F. COMPROMISO SOCIAL · ELIFONSO CORTEZ MARTINEZ148ecuador/Sed7b513864/20194352.8%0 (recorded zero)Recorded
PARTIDO SOCIEDAD PATRIOTICA 21 DE ENERO · YESENIA ZAMBRANO VERA3ecuador/Sed7b513864/20193062%0 (recorded zero)Recorded
UNION ECUATORIANA · MONICA GALEAS BAÑO51ecuador/Sed7b513864/20192801.8%0 (recorded zero)Recorded
UNIDAD POPULAR · DAVID ALDAZ BOSQUEZ143ecuador/Sed7b513864/20192211.4%0 (recorded zero)Recorded
MOVIMIENTO ECUATORIANO UNIDO · LUIS EDUARDO GUZMAN219ecuador/Sed7b513864/2019810.5%0 (recorded zero)Recorded

2014-02-23

Ordinary · Legal certification not established · valid votes

  • PARTIDO SOCIEDAD PATRIÓTICA "21 DE ENERO"49.8%
  • MONTALVO CON LA REVOLUCION CIUDADANA27.5%
  • PARTIDO AVANZA18.7%
  • MOVIMIENTO CREO4.0%
Results for event-c0338009cb7f7a5faecd8351
Label / candidateParty codeVotesShareSeatsStatus
PARTIDO SOCIEDAD PATRIÓTICA "21 DE ENERO" · CORTEZ MARTINEZ ELIFONSO CLEMENTE4ecuador/S09da2a23f3/20147,06349.8%1Recorded
MONTALVO CON LA REVOLUCION CIUDADANA · AGUILAR SOLIZ OSCAR OSWALDO12019ecuador/S09da2a23f3/20143,90027.5%0 (recorded zero)Recorded
PARTIDO AVANZA · TROYA PACHECO DIGNA AMARILIS6ecuador/S09da2a23f3/20142,64818.7%0 (recorded zero)Recorded
MOVIMIENTO CREO · CAMACHO ESTRADA RONFIS ERNESTO8ecuador/S09da2a23f3/20145704%0 (recorded zero)Recorded

4. Competition and volatility

competition index

Provisional imported-series CI

21.370–100 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=15.892584681110772, oldest_gap=22.304491925816233, previous_gap=13.197610943420461

pedersen volatility

Provisional volatility

8.12percentage 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=[[21.86145865120537,0,5.126640219713153,0,0,0,73.01190112908148],[18.868409222272174,0,0,0,0,7.244236079892107,73.88735469783573],[0,18.672872152880615,0,4.019462661307383,0,0,77.307665185812]]

pedersen volatility

Provisional volatility

26.11percentage 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: Previous interval

Method pedersen.grouped.v1. Inputs: groups=["PSC","Avanza","Pachakutik","CREO","SUMA","Alianza PAIS","Other"], interval=Previous interval, vectors=[[21.86145865120537,0,5.126640219713153,0,0,0,73.01190112908148],[18.868409222272174,0,0,0,0,7.244236079892107,73.88735469783573],[0,18.672872152880615,0,4.019462661307383,0,0,77.307665185812]]

pedersen volatility

Provisional volatility

17.12percentage 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: Both intervals mean

Method pedersen.grouped.v1. Inputs: groups=["PSC","Avanza","Pachakutik","CREO","SUMA","Alianza PAIS","Other"], interval=Both intervals mean, vectors=[[21.86145865120537,0,5.126640219713153,0,0,0,73.01190112908148],[18.868409222272174,0,0,0,0,7.244236079892107,73.88735469783573],[0,18.672872152880615,0,4.019462661307383,0,0,77.307665185812]]

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.

Electoral register observations

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

Register observations
As ofElectorsNotes
2026-08-1123,643
Dated CNE administrative observation; not historical turnout. July count, difference and spending limit are retained separately.
{
  "call_source_id": "SA40-EC-CALL",
  "cne_canton": 710,
  "cne_parish": null,
  "cne_province": 12,
  "election_date": "2026-11-29",
  "electors_august": 23643,
  "jurisdiction_id": "EC-M-12-710",
  "name": "MONTALVO / LOS RÍOS",
  "office": "Mayor",
  "precinct_rows": [
    2329,
    2330,
    2331,
    2332,
    2333,
    2334,
    2335,
    2336
  ],
  "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

    Cite this record

    Center for Digital Democracy. “MONTALVO / LOS RÍOS — Mayor.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/EC-M-12-710. 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.