Caoayan

Caoayan
Municipality of Caoayan
The Caoayan Town Hall
Etymology: Bamboo
Motto: 
Pardas Caoayan!
Map of Ilocos Sur with Caoayan highlighted
Interactive map of Caoayan
Caoayan
Location within the Philippines
Coordinates: 17°32′49″N 120°22′59″E / 17.5469°N 120.3831°E / 17.5469; 120.3831
CountryPhilippines
RegionIlocos Region
ProvinceIlocos Sur
District 1st district
Founded1825
Chartered1911
Barangays17 (see Barangays)
Government
 • TypeSangguniang Bayan
 • MayorGermelina Singson Goulart
 • Vice MayorJuan Paolo Singson Ancheta
 • RepresentativeRonald Verzosa Singson
 • Municipal Council
Members
  • Lina Quilana
  • Jose Quadra
  • Darwin Albalos
  • Jun Ramos
  • Melnan Atendido
  • Elmo Alconcel
  • Armand Quitevis
  • Demetrio Briones
 • Electorate14,324 voters (2025)
Area
 • Total
17.42 km2 (6.73 sq mi)
Elevation
5.0 m (16.4 ft)
Highest elevation
44 m (144 ft)
Lowest elevation
0 m (0 ft)
Population
 (2024 census)
 • Total
19,715
 • Density1,132/km2 (2,931/sq mi)
 • Households
4,838
Economy
 • Income class2nd Municipal Income Class
 • Poverty incidence
15.6
% (2021)
 • Revenue₱ 216.4 million (2022)
 • Assets₱ 710.9 million (2022)
 • Expenditure₱ 121.2 million (2022)
 • Liabilities₱ 120.1 million (2022)
Service provider
 • ElectricityIlocos Sur Electric Cooperative (ISECO)
Time zoneUTC+8 (PST)
ZIP code
2702
PSGC
IDD:area code+63 (0)77
Native languagesIlocano
Tagalog

Caoayan, officially the Municipality of Caoayan (Ilocano: Ili ti Caoayan; Filipino: Bayan ng Caoayan), is a municipality in the province of Ilocos Sur, Philippines. According to the 2024 census, it has a population of 19,715 people.