Budinšćak families are Croats and they are mostly from Jastrebarsko. In the past century, relatively most of Croatian residents bearing this family name were born in Jastrebarsko and Zagreb. In Malunje in Jastrebarsko every seventh inhabitant had the family name Budinšćak.
Prevalence
About 110 people with faimily name Budinšćak live in Croatia today, in 40 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in four Croatian counties and 9 other places, mostly in Jastrebarsko (40), Malunje (25), Zagreb (<10), Gornja Reka (<10), and in Prodin Dol (<10).
Outside Croatia
Family name Budinšćak is present in two countries on two continents. The family name "Budinscak " is used by some 80 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.