Švetak families are Croats and they are mostly from Ivanec area. In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec area and in Varazdin.
Prevalence
About 90 people with faimily name Švetak live in Croatia today, in 30 households. There were 40 of them in the middle of the past century, and their number doubled. They are located in 6 Croatian counties and 11 other places, mostly in Donja Voca (40) and Rijeka Vocanska (10) in Ivanec area, Zagreb (10), Vinica Breg in Ivanec area (<10), and in Ivanec (<10).
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.