In Croatia, Kupreščanin families are Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Glina and Nasice.
Prevalence
About 10 people with faimily name Kupreščanin live in Croatia today, in two households only. There were 20 of them in the middle of the past century, and their number halved. They are located in one Croatian city only, in Beli Manastir (<5).
Outside Croatia
Family name Kupreščanin is present in this form only in Croatia.