Nišević families are mainly Serbs and they are mostly from Hrvatska Kostajnica area , whereas often Croats (from Sisak ). In the past century, relatively most of Croatian residents bearing this family name were born in Hrvatska Kostajnica area and in Zagreb. In places Kepčije and Sočanica in Hrvatska Kostajnica area every sixth inhabitant had the family name Nišević.
Prevalence
About 300 people with faimily name Nišević live in Croatia today, in 150 households. There were 510 of them in the middle of the past century, and their number decreased by 40 percent. They are located in the most of Croatian counties, in 23 cities and 43 other places, mostly in Zagreb (70), Dvor in Hrvatska Kostajnica area (35), Sisak (25), Gage in Hrvatska Kostajnica area (20), and in Rijeka (15).
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.