In Croatia, Kronstein families are generally Croats (from Sisak ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Sisak and Zagreb.
Prevalence
About 20 people with faimily name Kronstein live in Croatia today, in 6 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only five naselja i to in Zagreb (<10), Pula (<5), Sisak (<5), Osijek (<5), and in Topolovac (<5).