Suk families are Croats and they are mostly from Nasice area. According to some sources they are from Hrvatskog Zagorja (near Krapina). In the past century, relatively most of Croatian residents bearing this family name were born in Nasice area and in Nasice.
Prevalence
About 120 people with faimily name Suk live in Croatia today, in 60 households. There were 100 of them in the middle of the past century, and their number increased by 30 percent. They are located in 8 Croatian counties, in 9 cities and 13 other places, mostly in Nasice (35), Osijek (25), Breznica Nasicka in Nasice area (15), Zagreb (15), and in Koska in Nasice area (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.