Bastia Umbra is a comune in the Province of Perugia in the Italian region Umbria, located about 15 km southeast of Perugia. As of 31 December 2004, it had a population of 20,523 and an area of 27.6 km2. Bastia Umbra borders the following municipalities: Assisi, Bettona, Perugia, and Torgiano.