Kozlica families are mainly Croats and they are mostly from Kastela area. According to some sources they are from Zadar, also Serbs, very rarely Bosniaks. In the past century, relatively most of Croatian residents bearing this family name were born in Split and Sinj.
Prevalence
About 170 people with faimily name Kozlica live in Croatia today, in 80 households. There were 180 of them in the middle of the past century, and their number decreased by 10 percent. They are located in the most of Croatian counties, in 22 cities and 12 other places, mostly in Split (45), Zagreb (25), Velic in Sinj area (25), Kastel Stari (25), and in Kastel Luksic (15).
Outside Croatia
Family name Kozlica is present in 10 countries on three continents. The family name "Kozlica " is used by small number of people in Austria , small number in the United States , and small number of people in Germany.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.