Rokić families are frequently Croats and they are mostly from Petrinja , less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Petrinja and Sisak.
Prevalence
About 140 people with faimily name Rokić live in Croatia today, in 70 households. There were 190 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 23 cities and 23 other places, mostly in Hrastovica (25), Rijeka (15), Petrinja (15), Velika Gorica (10), and in Pula (<10).