Castelfiorentino is a city and comune in the Metropolitan City of Florence, Tuscany, central-northern Italy, halfway between Florence, Pisa and Siena. The population is approximately 20,000 inhabitants. It is part of Valdelsa.
Castelfiorentino borders the following municipalities: Certaldo, Empoli, Gambassi Terme, Montaione, Montespertoli and San Miniato.
Wikipedia https://en.wikipedia.org/wiki/Castelfiorentino
Coordinates 43°36'20.184" N 10°58'16.494" E