 Located in southern Umbria, nearby the borders with Lazio, the municipality borders with Calvi dell'Umbria, Configni (RI), Cottanello (RI), Greccio (RI), Narni, Otricoli, Rieti (RI) and Terni.It counts the hamlets ("frazioni") of Aguzzo, Coppe, Finocchieto and Vasciano.Although some have wanted to identify the site ofStroncone is home to that of the ancient Roman town of Trebula Suffena, there is no reliable documentation for this.