In Croatia, Niković families are generally Croats (from Vrbovsko ), very rarely Serbs, and . In the past century, relatively most of Croatian residents bearing this family name were born in Labin and Sisak.
Prevalence
About 30 people with faimily name Niković live in Croatia today, in 20 households. There were 20 of them in the middle of the past century, and their number increased by 60 percent. They are located in 6 Croatian counties, in 9 cities and threee other places, mostly in Zagreb (15), Vrbovsko (<10), Split (<5), Rijeka (<5), and in Labin (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.