In Croatia, Krupski families are Croats (from Djurdjevac area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Zagreb.
Prevalence
About 40 people with faimily name Krupski live in Croatia today, in 17 households. There were 70 of them in the middle of the past century, and their number decreased by 50 percent. They are only located in in 7 Croatian cities and 6 other places, mostly in Djurdjevac (10), Zagreb (<10), in Podravske Sesvete (<10) and Klostar Podravski (<5) in Djurdjevac area, and in Koprivnica (<5).