Montesilvano is a locality located 152.66 km west-southwest from Rome in Abruzzo, Italy. The population of Montesilvano is 54,194 people. Chieti, L'Aquila, Pescara are located close to Montesilvano. You can find Montesilvano on any map using the following decimal coordinates: 42.5119 (latitude), 14.1373 (longitude).