Santo Domingo, Ilocos Sur

Santo Domingo
Municipality of Santo Domingo
St. Dominic of Guzman Parish Church of Santo Domingo
Motto(s): 
Arangkada Todo-Todo, Santo Domingo
Map of Ilocos Sur with Santo Domingo highlighted
OpenStreetMap
Santo Domingo
Location within the Philippines
Coordinates: 17°38′29″N 120°24′39″E / 17.6414°N 120.4108°E / 17.6414; 120.4108
CountryPhilippines
RegionIlocos Region
ProvinceIlocos Sur
District 1st district
Named afterSaint Dominic
Barangays36 (see Barangays)
Government
  TypeSangguniang Bayan
  MayorBryan Dexter V. Tadena
  Vice MayorMichael Emili V. Figueras
  RepresentativeDeogracias Victor B. Savellano
  Municipal Council
Members
  Electorate20,229 voters (2025)
Area
  Total
55.49 km2 (21.42 sq mi)
Elevation
17 m (56 ft)
Highest elevation
185 m (607 ft)
Lowest elevation
0 m (0 ft)
Population
 (2020 census)
  Total
29,041
  Density520/km2 (1,400/sq mi)
  Households
7,346
Economy
  Income class3rd municipal income class
  Poverty incidence
16.53
% (2021)
  Revenue286.2 million (2022)
  Assets1,156 million (2022)
  Expenditure193.8 million (2022)
  Liabilities59.56 million (2022)
Service provider
  ElectricityIlocos Sur Electric Cooperative (ISECO)
Time zoneUTC+8 (PST)
ZIP code
2729
PSGC
IDD:area code+63(0)77
Native languagesIlocano
Tagalog
Websitewww.stodomingo-ilocossur.gov.ph

Santo Domingo, officially the Municipality of Santo Domingo (Ilocano: Ili ti Santo Domingo; Filipino: Bayan ng Santo Domingo), is a municipality in the province of Ilocos Sur, Philippines. According to the 2020 census, it has a population of 29,041 people.