In Croatia, Belšak families are generally Croats (from Ivanec area ), very rarely Slovenes (from Slovenia ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Varazdin. In Srijem in Koprivnica area every thirtieth inhabitant had the family name Belšak.
Prevalence
About 50 people with faimily name Belšak live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number remains constant. They are located in 7 Croatian counties, in 7 cities and 11 other places, mostly in Pula (10), Varazdin (<10), Zagreb (<10), Vinica in Ivanec area (<5), and in Celine (<5).