Koščević families are Croats and they are mostly from Donja Stubica area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Donja Stubica area.
Prevalence
About 350 people with faimily name Koščević live in Croatia today, in 150 households. There were 350 of them in the middle of the past century, and their number remains constant. They are located in the most of Croatian counties, in 19 cities and 38 other places, mostly in Zagreb (75), Sesvete (35), Brezovljani in Krizevci area (20), Sveti Matej in Donja Stubica area (20), and in Osijek (20).
Outside Croatia
Family name Koščević is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1669 in source Catholic Church Parish Records.