In Croatia, Pjaca families are generally Croats (from Bosnian Krajina ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Vinkovci and in Bosanian Posavina (Bosanska Gradiska area).
Prevalence
About 20 people with faimily name Pjaca live in Croatia today, in 8 households. They are located in four Croatian counties and another small place , mostly in Sisak (<10), Zagreb (<5), Vinkovci (<5), Split (<5), and in Trogir (<5).