Kveštak families are Croats and they are mostly from Krapina area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Krapina area.
Prevalence
About 120 people with faimily name Kveštak live in Croatia today, in 50 households. There were 90 of them in the middle of the past century, and their number increased by 40 percent. They are located in 8 Croatian counties, in 7 cities and 11 other places, mostly in Zagreb (40), Novska (20), Mihovljan in Krapina area (15), Ivanic-Grad (10), and in Lepajci (<10).
Outside Croatia
Family name Kveštak is present in this form only in Croatia.
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.