Ilocos Sur
Ilocos Sur (REGION I): 37 cities and towns, 2,502 people who ran for local office 2001–2025. Governors, mayors, representatives, board members and councilors with votes and results.
Governors
- 2025: Jerry Singson
- 2022: Jerry Singson
- 2019: Ryan Verzosa Singson
- 2016: Ryan Verzosa Singson
- 2013: Ryan Luis Verzosa Singson
- 2010: Luis Crisologo Singson
- 2007: Deogracias Victor Jose Savellano
- 2004: Luis Crisologo Singson
- 2001: Deogracias Victor B. Savellano
Cities and towns
- Alilem
- Banayoyo
- Bantay
- Burgos
- Cabugao
- Candon
- Caoayan
- Cervantes
- Galimuyod
- Gregorio del Pilar
- Gregorio del Pilar Concepcion
- Lidlidda
- Magsingal
- Nagbukel
- Narvacan
- Quirino
- Salcedo
- Salcedo Baugen
- San Emilio
- San Esteban
- San Ildefonso
- San Juan
- San Juan Lapog
- San Vicente
- Santa
- Santa Catalina
- Santa Cruz
- Santa Lucia
- Santa Maria
- Santiago
- Santo Domingo
- Sigay
- Sinait
- Sugpon
- Suyo
- Tagudin
- Vigan