In Croatia, Nanuk families are Croats (from Varazdin area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Nanuk live in Croatia today, in two households only. They are located in two Croatian counties, in one city and another small place , mostly in Trnovec in Varazdin area (<5) and Zagreb (<5).