Košutić families are frequently Croats and they are mostly from Krapina area , less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Krapina area. In Rudopolje Bruvanjsko in Knin area every ninth inhabitant had the family name Košutić.
Prevalence
About 610 people with faimily name Košutić live in Croatia today, in 260 households. There were 700 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 41 cities and 80 other places, mostly in Zagreb (165), Gornja Semnica in Krapina area (50), Zapresic (20), Vinkovci (20), and in Kapela Dvor in Virovitica area (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1679 in source Catholic Church Parish Records.