Cauayan, Isabela
| Cauayan | |
|---|---|
| City of Cauayan | |
| Rizal Street in Cauayan Poblacion | |
| Etymology: Bamboo | |
| Nicknames: 
 | |
| Motto(s): Oh, Cauayan | |
| Map of Isabela with Cauayan highlighted | |
| OpenStreetMap | |
| Location within the Philippines | |
| Coordinates: 16°46′N 121°47′E / 16.77°N 121.78°E | |
| Country | Philippines | 
| Region | Cagayan Valley | 
| Province | Isabela | 
| District | 6th district | 
| Founded | 1740 | 
| Cityhood | March 30, 2001 | 
| Barangays | 65 (see Barangays) | 
| Government | |
| • Type | Sangguniang Panlungsod | 
| • Mayor | Kurt Lawrence Dy. | 
| • Vice Mayor | Leoncio A. Dalin Jr. | 
| • Representative | Faustino A. Dy V | 
| • City Council | Members | 
| • Electorate | 93,785 voters (2025) | 
| Area | |
|  • Total | 336.40 km2 (129.88 sq mi) | 
| Elevation | 65 m (213 ft) | 
| Highest elevation | 148 m (486 ft) | 
| Lowest elevation | 32 m (105 ft) | 
| Population  (2020 census) | |
|  • Total | 143,403 | 
| • Density | 430/km2 (1,100/sq mi) | 
| • Households | 36,399 | 
| Economy | |
| • Income class | 3rd city income class | 
| • Poverty incidence | 14.36 | 
| • Revenue | ₱ 1,515 million (2022) | 
| • Assets | ₱ 3,754 million (2022) | 
| • Expenditure | ₱ 1,304 million (2022) | 
| • Liabilities | ₱ 2,366 million (2022) | 
| Service provider | |
| • Electricity | Isabela 1 Electric Cooperative (ISELCO 1) | 
| Time zone | UTC+8 (PST) | 
| ZIP code | 3305 | 
| PSGC | |
| IDD : area code | +63 (0)78 | 
| Native languages | Ilocano Gaddang Tagalog | 
| Website | cityofcauayan | 
Cauayan, officially the City of Cauayan (Ibanag: Siyudad nat Cauayan; Gaddang: Siyudad na Cauayan; Ilocano: Siudad ti Cauayan; Filipino: Lungsod ng Cauayan), is a component city in the province of Isabela, Philippines. According to the 2020 census, it has a population of 143,403 people.