In Croatia, Kobac families are mainly Croats (from Karlovac ), less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and in Glina area. In Trepča in Glina area every sixth inhabitant had the family name Kobac.
Prevalence
About 20 people with faimily name Kobac live in Croatia today, in 9 households. There were 40 of them in the middle of the past century, and their number halved. They are located in only five naselja i to in Karlovac (10), Mirkovci (<5), Osijek (<5), Glina (<5), and in Trepca in Glina area (<5).