Zbiljski families are Croats and they are mostly from Pregrada area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Pregrada area. In Turnovo in Pregrada area nearly every inhabitant had the family name Zbiljski.
Prevalence
About 130 people with faimily name Zbiljski live in Croatia today, in 50 households. There were 110 of them in the middle of the past century, and their number increased by 20 percent. They are located in 9 Croatian counties, in 9 cities and 13 other places, mostly in Zagreb (60), Turnovo in Pregrada area (10), Jarmina in Vinkovci area (<10), Visnjevac (<10), and in Velika Mlaka (<10).
Outside Croatia
Family name Zbiljski is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.