 As of 2012 its population was of 6,445.Livy mentions Fregenae among the "coloniae maritimae" (xxxvi.3); and there is every reason to suppose that it was established at the same time with Alsium, in 245 BCE, and that we should read Fregenae for Fregellae in Velleius Paterculus, where he speaks of the foundation of these two colonies.