In Croatia, Rok families are Croats (from Cakovec ). In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and Zagreb.
Prevalence
About 30 people with faimily name Rok live in Croatia today, in 18 households. There were 70 of them in the middle of the past century, and their number decreased significantly. They are located and two other Croatian places, mostly in Cakovec (15), Zagreb (10), Mihovljan (<10), Osijek (<5), and in Vukovar (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.