In Croatia, Popinjač families are Croats (from Cazma area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Kutina area.
Prevalence
About 20 people with faimily name Popinjač live in Croatia today, in 11 households. There were 40 of them in the middle of the past century, and their number halved. They are located in four Croatian counties, threee cities and four other places, mostly in Zagreb (<10), Velika Gorica (<10), Sesvete (<10), Voloder in Kutina area (<5), and in Osijek (<5).
Outside Croatia
Family name Popinjač 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.