In Croatia, Popač families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
About 20 people with faimily name Popač live in Croatia today, in 7 households. They are located in only four naselja i to in Zagreb (<10), Luzan (<10), Dugo Selo (<5), and in Hudi Bitek (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.