In Croatia, Longo families are generally Croats (from Split ), very rarely Italians (from Rovinj ). In the past century, relatively most of Croatian residents bearing this family name were born in Split and Rovinj.
Prevalence
About 30 people with faimily name Longo live in Croatia today, in 13 households. There were 80 of them in the middle of the past century, and their number decreased significantly. They are located and threee other Croatian places, mostly in Split (15), Ploce (<5), Zagreb (<5), Rovinj (<5), and in Pula (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1614 in source Catholic Church Parish Records.