In Croatia, Biljaković families are Croats (from Trogir area ). In the past century, relatively most of Croatian residents bearing this family name were born in Split and Sibenik.
Prevalence
About 30 people with faimily name Biljaković live in Croatia today, in 15 households. There were 20 of them in the middle of the past century, and their number increased by 60 percent. They are located and two other Croatian places, mostly in Rogoznica in Trogir area (10), Split (<10), Rijeka (<10), Zagreb (<5), and in Sukosan in Zadar area (<5).