In Croatia, Prlok families are Croats (from Koprivnica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and Zagreb.
Prevalence
About 10 people with faimily name Prlok live in Croatia today, in three households only. There were 60 of them in the middle of the past century, and their number decreased significantly. They are located in only two Croatian places: in Kunovec in Koprivnica area (<10) and Zagreb (<10).
Outside Croatia
Family name Prlok (including: Perlock , Perlok ) is present in five countries on two continents. "Perlock " is used by small number of people in the United States and small number in Canada.