Caoayan
| Caoayan | |
|---|---|
| Municipality of Caoayan | |
| The Caoayan Town Hall | |
| Etymology: Bamboo | |
| Motto: Pardas Caoayan! | |
| Map of Ilocos Sur with Caoayan highlighted | |
| OpenStreetMap | |
| Location within the Philippines | |
| Coordinates: 17°32′49″N 120°22′59″E / 17.5469°N 120.3831°E | |
| Country | Philippines | 
| Region | Ilocos Region | 
| Province | Ilocos Sur | 
| District | 1st district | 
| Founded | 1825 | 
| Chartered | 1911 | 
| Barangays | 17 (see Barangays) | 
| Government | |
| • Type | Sangguniang Bayan | 
| • Mayor | Germelina Singson Goulart | 
| • Vice Mayor | Juan Paolo Singson Ancheta | 
| • Representative | Ronald Verzosa Singson | 
| • Municipal Council | Members | 
| • Electorate | 14,324 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  (2020 census) | |
|  • Total | 19,574 | 
| • Density | 1,100/km2 (2,900/sq mi) | 
| • Households | 4,838 | 
| Economy | |
| • Income class | 2nd Municipal Income Class | 
| • Poverty incidence | 15.60 | 
| • Revenue | ₱ 216.4 million (2022) | 
| • Assets | ₱ 710.9 million (2022) | 
| • Expenditure | ₱ 121.2 million (2022) | 
| • Liabilities | ₱ 120.1 million (2022) | 
| Service provider | |
| • Electricity | Ilocos Sur Electric Cooperative (ISECO) | 
| Time zone | UTC+8 (PST) | 
| ZIP code | 2702 | 
| PSGC | |
| IDD : area code | +63 (0)77 | 
| Native languages | Ilocano 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 2020 census, it has a population of 19,574 people.