[3] San Sebastian was absorbed into the town of Wright (Paranas) 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.

Between 1894 and 1895, San Sebastian was given the status as pueblo and an independent parish separated from its mother town, Paranas.

During the outbreak of the Philippine Revolution, San Sebastian was again affixed as a barrio of Paranas.

Poverty Incidence of San Sebastian Source: Philippine Statistics Authority[11][12][13][14][15][16][17][18]