Kotarac families are Croats and they are mostly from Omis area. In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Livno area) and in Omis area.
Prevalence
About 210 people with faimily name Kotarac live in Croatia today, in 80 households. There were 90 of them in the middle of the past century, and their number more than doubled. They are located in almost all Croatian counties, in 22 cities and 12 other places, mostly in Split (50), Zagreb (40), Bjelovar (20), Rijeka (10), and in Makarska (10).
Outside Croatia
Family name Kotarac is present in 13 countries on four continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.