Vallelunga Pratameno (Sicilian: Vaddilonga) is a comune (municipality) in the Province of Caltanissetta in the Italian region Sicily, located about 60 kilometres (37mi) southeast of Palermo and about 30 kilometres (19mi) northwest of Caltanissetta. As of 31 December 2004, it had a population of 3,779 and an area of 39.2 square kilometres (15.1sqmi).