Bilan families are Croats and they are mostly from Sinj area. In the past century, relatively most of Croatian residents bearing this family name were born in Split and Sibenik. In Prisoje in Sinj area every ninth inhabitant had the family name Bilan.
Prevalence
About 310 people with faimily name Bilan live in Croatia today, in 150 households. There were 270 of them in the middle of the past century, and their number increased by 20 percent. They are located in 9 Croatian counties, in 19 cities and 15 other places, mostly in Split (65), Prisoje in Sinj area (55), Zadar (40), Vodice (35), and in Sibenik (30).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1683 in source Catholic Church Parish Records.