Kotorac families are Croats and they are mostly from Pakrac. In the past century, relatively most of Croatian residents bearing this family name were born in Pakrac and Nova Gradiska.
Prevalence
About 80 people with faimily name Kotorac live in Croatia today, in 30 households. There were 100 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 10 Croatian counties, in 9 cities and 11 other places, mostly in Tisovac in Nova Gradiska area (25), Omanovac (10), Pozega (<10), Pakrac (<10), and in Zagreb (<10).
Outside Croatia
Family name Kotorac is present in 6 countries on three continents. The family name "Kotorac " is used by small number of people in Australia and small number in the United States.
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.