Santa Lucia, officially the Municipality of Santa Lucia (; ), is a municipality in the province of Ilocos Sur, Philippines. According to the , it has a population of people.
The town celebrates the feast of its patroness, Saint Lucy, annually on December 13.
The Municipality of Santa Lucia is bordered to the north by the city of Candon, Santa Cruz to the south, and Salcedo to the east.
Santa Lucia is situated from the provincial capital Vigan, and from the country's capital city of Manila.
Santa Lucia is politically subdivided into 36 barangays. Each barangay consists of puroks and some have sitios.
In the 2024 census, Santa Lucia had a population of 26,200 people. The population density was .
Ilocano is the primary language of Santa Lucia.
On 20 May 2024, Santa Lucia celebrated the 1st Rambak Mani Festival to promote its One Town, One Product â peanut industry. Governor Jerry Singson, Mayor Joseph Simon B. Valdez and Vice Mayor Eduardo A. Toquero graced the landmark festival.
Santa Lucia, belonging to the second congressional district of the province of Ilocos Sur, is governed by a mayor designated as its local chief executive and by a municipal council as its legislative body in accordance with the Local Government Code. The mayor, vice mayor, and the councilors are elected directly by the people through an election which is being held every three years.
The Sta. Lucia Schools District Offices governs all educational institutions within the municipality. It oversees the operations of all private and public elementary and high schools.