In Croatia, Kozomara families are generally Croats (from Porec ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Split.
Prevalence
About 40 people with faimily name Kozomara live in Croatia today, in 17 households. There were 10 of them in the middle of the past century, and their number multiplied. They are only located in in 6 Croatian cities and two other places, mostly in Zagreb (15), Split (<10), Montizana (<10), Dracevac (<5), and in Krizevci (<5).
Outside Croatia
Family name Kozomara is present in 16 countries on three continents. The family name "Kozomara " is used by small number of people in the United States , small number in Russian Federation , and small number of people in Australia.