Bastia Umbra is a commune in the Province of Perugia in the Umbria region of Italy, 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, Torgiano.