Municipality of Gregorio del Pilar, Ilocos Sur - Philippines

Gregorio Del Pilar is a 5th class municipality in the province of Ilocos Sur, Philippines. According to the 2000 census, it has a population of 4,134 people in 811 households. Formerly a township named Concepcion (in honor of its patron saint, Nuestra Senora de Concepcion), is later named after the young general named Gregorio del Pilar who fought to the death against the Americans at Tirad Pass, by virtue of Republic Act No. 1246 on June 10, 1955. It was sponsored by Congressman Ricardo Gacula.