Calayan, Cagayan
| Calayan | |
|---|---|
| Municipality of Calayan | |
| Smith Volcano on Babuyan Island | |
| Map of Cagayan with Calayan highlighted | |
| OpenStreetMap | |
| Location within the Philippines | |
| Coordinates: 19°15′43″N 121°28′31″E / 19.2619°N 121.4753°E | |
| Country | Philippines | 
| Region | Cagayan Valley | 
| Province | Cagayan | 
| District | 2nd district | 
| Barangays | 12 (see Barangays) | 
| Government | |
| • Type | Sangguniang Bayan | 
| • Mayor | Joseph M. Llopis | 
| • Vice Mayor | Edmund B. Escalante | 
| • Representative | Samantha Louise V. Alfonso | 
| • Municipal Council | Members | 
| • Electorate | 9,900 voters (2025) | 
| Area | |
|  • Total | 494.53 km2 (190.94 sq mi) | 
| Elevation | 9.0 m (29.5 ft) | 
| Highest elevation | 1,248 m (4,094 ft) | 
| Lowest elevation | 0 m (0 ft) | 
| Population  (2020 census) | |
|  • Total | 17,410 | 
| • Density | 35/km2 (91/sq mi) | 
| • Households | 4,250 | 
| Economy | |
| • Income class | 3rd municipal income class | 
| • Poverty incidence | 22.58 | 
| • Revenue | ₱ 244.9 million (2022) | 
| • Assets | ₱ 789.9 million (2022) | 
| • Expenditure | ₱ 153 million (2022) | 
| • Liabilities | ₱ 179.6 million (2022) | 
| Service provider | |
| • Electricity | Cagayan 2 Electric Cooperative (CAGELCO 2) | 
| Time zone | UTC+8 (PST) | 
| ZIP code | 3520 | 
| PSGC | |
| IDD : area code | +63 (0)78 | 
| Native languages | Ibanag Ilocano Ivatan Tagalog | 
| Website | www | 
Calayan, officially the Municipality of Calayan (Ilocano: Ili ti Calayan; Ivatan: Kavahayan nu Calayan; Ibanag: Ili nat Calayan; Tagalog: Bayan ng Calayan), is a municipality in the province of Cagayan, Philippines. According to the 2020 census, it has a population of 17,410 people.
Calayan is home to the Calayan rail, a flightless bird identified as a separate species in 2004 and endemic to Calayan Island.