In Croatia, Vancaš families are almost entirely Croats (from Petrinja ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Petrinja.
Prevalence
About 70 people with faimily name Vancaš live in Croatia today, in 30 households. There were 110 of them in the middle of the past century, and their number decreased by 40 percent. They are located in 6 Croatian counties, in 7 cities and 9 other places, mostly in Zagreb (20), Novi Farkasic (10), Jastrebarsko (<10), Rijeka (<5), and in Sesvete (<5).
Outside Croatia
Family name Vancaš is present in 10 countries on two continents. The family name "Vancas " is used by some 100 people in the United States , small number in Canada , and small number in Germany , small number in Turkey.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.