Biliškov families are Croats and they are mostly from Kastela (Sucurac, Luksic and Stari). In the past century, relatively most of Croatian residents bearing this family name were born in Split and Kastel Sucurac.
Prevalence
About 90 people with faimily name Biliškov live in Croatia today, in 40 households. There were 70 of them in the middle of the past century, and their number increased by 20 percent. They are located in threee Croatian counties, four cities and four other places, mostly in Kastel Luksic (70), Split (15), Kastel Stari (<10), Zagreb (<10), and in Medulin in Pula area (<5).
Outside Croatia
Family name Biliškov (including: Biliskov , Belyshkov ) is present in four countries on two continents. The family name "Biliskov " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1936 in source Emigration Commission Zagreb.