Setnik families are Croats and they are mostly from Prelog. In the past century, relatively most of Croatian residents bearing this family name were born in Prelog and in Prelog area.
Prevalence
About 80 people with faimily name Setnik live in Croatia today, in 40 households. There were 100 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 8 Croatian counties, in 9 cities and 12 other places, mostly in Kotoriba in Prelog area (10), Prelog (<10), Donji Hrascan in Prelog area (<10), Valpovo (<10), and in Zagreb (<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.