Petrišić families are Croats and they are mostly from Klanjec. In the past century, relatively most of Croatian residents bearing this family name were born in Klanjec and Zagreb.
Prevalence
About 80 people with faimily name Petrišić live in Croatia today, in 40 households. There were 80 of them in the middle of the past century, and their number remains constant. They are located in 9 Croatian counties, in 10 cities and 7 other places, mostly in Zagreb (20), Klanjec (15), Gredice (<10), Velika Gorica (<10), and in Varazdin (<5).
Outside Croatia
Family name Petrišić is present in 6 countries on three continents.
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.