Castelfidardo is the international capital of accordion builders. A variety of other musical instruments besides the accordion have been produced in the town since the 19th century, such as the armonica.
G.S.D. Castelfidardo Calcio is the town's football club, founded in 1944. Currently, it plays in Italy's Serie D after the promotion from national play-off in the Eccellenza in the 2013–14 season.
Its home ground is Stadio G. Mancini with 2,000 seats. The team's colors are white and green.
"Il Palombarone". Comune di Castelfidardo Villa Pace e Palombarone. Comune di Castelfidardo. Retrieved 20 May 2017.[permanent dead link] http://www.turismocastelfidardo.it/03_Le%20nostre%20bellezze/04_La_Villa_e_Palombarone/index.htm ↩