San Miguel Island is located at the western end of the strip of islands in the Lagonoy Gulf in the province of Albay. It is part of Tabaco City.
The island contains five barangays: Angas, Hacienda, Rawis, Sagurong and Visita. The main economic activities are farming, fishing, basket and mat weaving, and cattle raising.
The other islands on this strip are Cagraray Island, Batan Island and Rapu-rapu Island.