In Croatia, Kupreš families are predominantly Serbs, rarely Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Grubisno Polje. In Dapčevački Brđani in Grubisno Polje every seventh inhabitant had the family name Kupreš.
Prevalence
About 20 people with faimily name Kupreš live in Croatia today, in one household only. There were 20 of them in the middle of the past century, and their number remains constant. They are located in two Croatian cities only, in Zagreb (<5) and Turcevic Polje (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.