In Croatia, Kozlik families are Croats (from Bjelovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar area and in Bjelovar. In Tuk in Bjelovar area every thirtieth inhabitant had the family name Kozlik.
Prevalence
About 20 people with faimily name Kozlik live in Croatia today, in 7 households. There were 30 of them in the middle of the past century, and their number decreased by 40 percent. They are located in only four Croatian places: in Predavac in Bjelovar area (10), Zagreb (<10), Tuk in Bjelovar area (<5), and in Sveti Ivan Zabno in Krizevci area (<5).