In Croatia, Kozma families are predominantly Croats (from Belisce ), very rarely Hungarians (from Osijek ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Osijek area.
Prevalence
About 50 people with faimily name Kozma live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 6 cities and 9 other places, mostly in Osijek (20), Slatina (<10), Cepin in Osijek area (<10), Belisce (<10), and in Topolje in Beli Manastir area (<10).
Outside Croatia
Family name Kozma is present in 64 countries worldwide. The family name "Kozma " is used by some 10000 people in Hungary , about 3000 in Syria , and some 3000 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.
