In Croatia, Bis families are generally Croats (from Daruvar area ), very rarely Czechs (from Pakrac ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Pakrac and in Daruvar area.
Prevalence
About 20 people with faimily name Bis live in Croatia today, in 6 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in two Croatian counties, two cities and two other places, mostly in Sirac in Daruvar area (15), Daruvar (<10), Zagreb (<10), and in Hercegovac in Garesnica area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.