San Sebastian is a 6th class municipality in the province of Samar, Philippines. According to the 2015 census, it has a population of 8,057 people. San Sebastian was absorbed into the town of Wright during the American occupation. In 1950, the neighborhoods of San Sebastian, Jitaasan, Dolores, Camanjagay, Bontod, Campidasa, Campiyak, Maslog, Balogo, Maropangpang, Binongtoan, and Bolwan were combined and re-established as a single town. ^ "Region VIII ".