Bivol families are Croats and they are mostly from Zabok. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zabok.
Prevalence
About 80 people with faimily name Bivol live in Croatia today, in 20 households. There were 110 of them in the middle of the past century, and their number decreased by 30 percent. They are located in four Croatian counties, in 6 cities and four other places, mostly in Zabok (30), Oroslavje (15), Zagreb (10), Pustodol (10), and in Dubrava Zabocka (<10).
Outside Croatia
Family name Bivol is present in 23 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.