Santa Maria, Ilocos Sur
| Santa Maria | |
|---|---|
| Municipality of Santa Maria | |
| Nuestra Señora de la Asuncion Church | |
| Map of Ilocos Sur with Santa Maria highlighted | |
| OpenStreetMap | |
| Location within the Philippines | |
| Coordinates: 17°22′19″N 120°28′53″E / 17.3719°N 120.4814°E | |
| Country | Philippines | 
| Region | Ilocos Region | 
| Province | Ilocos Sur | 
| District | 2nd district | 
| Founded | April 25, 1765 | 
| Barangays | 33 (see Barangays) | 
| Government | |
| • Type | Sangguniang Bayan | 
| • Mayor | Brigido C. Camarillo Jr. | 
| • Vice Mayor | Michael S. Florendo | 
| • Representative | Kristine Singson-Meehan | 
| • Municipal Council | Members | 
| • Electorate | 21,044 voters (2025) | 
| Area | |
|  • Total | 63.31 km2 (24.44 sq mi) | 
| Elevation | 20 m (70 ft) | 
| Highest elevation | 289 m (948 ft) | 
| Lowest elevation | 0 m (0 ft) | 
| Population  (2020 census) | |
|  • Total | 30,006 | 
| • Density | 470/km2 (1,200/sq mi) | 
| • Households | 7,453 | 
| Demonym | Santa Marian’s | 
| Economy | |
| • Income class | 3rd municipal income class | 
| • Poverty incidence | 15.91 | 
| • Revenue | ₱ 571.4 million (2022) | 
| • Assets | ₱ 3,268 million (2022) | 
| • Expenditure | ₱ 256.2 million (2022) | 
| • Liabilities | ₱ 554.9 million (2022) | 
| Service provider | |
| • Electricity | Ilocos Sur Electric Cooperative (ISECO) | 
| Time zone | UTC+8 (PST) | 
| ZIP code | 2705 | 
| PSGC | |
| IDD : area code | +63 (0)77 | 
| Native languages | Ilocano Tagalog | 
| Major religions | Roman Catholic | 
| Feast date | August 15 | 
| Catholic diocese | Archdiocese of Nueva Segovia | 
| Patron saint | Nuestra Señora de Asuncion | 
| Website | www | 
Santa Maria, officially the Municipality of Santa Maria (Ilocano: Ili ti Santa Maria; Filipino: Bayan ng Santa Maria), is a municipality in the province of Ilocos Sur, Philippines. According to the 2020 census, it has a population of 30,006 people.