Pupavac families are mainly Serbs and they are mostly from Virovitica area , whereas often Croats. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Virovitica area.
Prevalence
About 90 people with faimily name Pupavac live in Croatia today, in 60 households. There were 360 of them in the middle of the past century, and their number decreased significantly. They are located in the most of Croatian counties, in 16 cities and 12 other places, mostly in Zagreb (25), Rijeka (15), Varazdin (<10), Zapresic (<10), and in Slavonski Brod (<5).
Outside Croatia
Family name Pupavac is present in 11 countries on three continents. "Pupavatz " is used by few people in the United States.
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.