In Croatia, Katušin families are almost entirely Croats (from Karlovac ), barely Hungarians (from Beli Manastir area ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and in Beli Manastir area.
Prevalence
About 70 people with faimily name Katušin live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number increased by 30 percent. They are located in four Croatian counties and 7 other places, mostly in Karlovac (35), Draz in Beli Manastir area (15), Zagreb (<10), Batina in Beli Manastir area (<5), and in Gornje Stative (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1935 in source Emigration Commission Zagreb.