In Croatia, Kokor families are Croats (from Djurdjevac area ). In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Vares area) and in Koprivnica. In Mačkovac in Slatina area every thirtieth inhabitant had the family name Kokor.
Prevalence
About 40 people with faimily name Kokor live in Croatia today, in 15 households. There were 50 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 9 Croatian counties, in 8 cities and 7 other places, mostly in Hreljin (<10), Zagreb (<10), Djurdjevac (<10), Rogovac in Virovitica area (<10), and in Krizevci (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.