In Croatia, Petrać families are Croats. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Krapina area.
Prevalence
About 10 people with faimily name Petrać live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only threee Croatian places: in Hrsak Breg in Krapina area (<5), Sesvete (<5), and in Krapinske Toplice in Krapina area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1683 in source Catholic Church Parish Records.