In Croatia, Biliš families are Croats (from the Island of Korcule ). In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Korcula and in Split.
Prevalence
About 40 people with faimily name Biliš live in Croatia today, in 19 households. There were 60 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties, two cities and 6 other places, mostly in Zrnovo (20) and Korcula (15) on the Island of Korcula, Bol on the Island of Brac (<5), Sibenik (<5), and in Trpanj on the Peljesac peninsula (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.