In Croatia, Petrec families are almost entirely Croats (from Ivanic-Grad area ), barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Ivanic-Grad area and in Zagreb.
Prevalence
About 50 people with faimily name Petrec live in Croatia today, in 19 households. There were 40 of them in the middle of the past century, and their number increased by 10 percent. They are located in 6 Croatian counties, in 6 cities and 9 other places, mostly in Recica Kriska in Ivanic-Grad area (10), Ivanic-Grad (<10), Bjelovar (<10), Kriz in Ivanic-Grad area (<10), and in Vidrenjak in Cazma area (<10).
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.