In Croatia, Nikles families are Croats (from Cazma area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and in Cazma area.
Prevalence
About 30 people with faimily name Nikles live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number increased by 60 percent. They are located and 5 other Croatian places, mostly in Bjelovar (<10), Gudovac (<10), Pula (<5), Zagreb (<5), and in Brezovac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.