Nikl families are Croats and they are mostly from Samobor. In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and Zagreb.
Prevalence
About 90 people with faimily name Nikl live in Croatia today, in 40 households. There were 130 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 9 Croatian counties, in 10 cities and 7 other places, mostly in Rude (40), Samobor (15), Zagreb (10), Slatina (<10), and in Sarengrad (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.