In Croatia, Čok families are almost entirely Croats (from Djurdjevac area ), barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Doboj, Bosnia (Doboj area).
Prevalence
About 40 people with faimily name Čok live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 10 Croatian counties, in 12 cities and 7 other places, mostly in Zagreb (<10), Osijek (<10), Varazdin (<5), Vukovar (<5), and in Labin (<5).