In Croatia, Unčanin families are predominantly Serbs (from Cazins Region (Bosnia) ), rarely Croats (from the Island of Korcule ). In the past century, relatively most of Croatian residents bearing this family name were born in Cazins Region, Bosnia (Sanski Most area) and in Zagreb.
Prevalence
About 20 people with faimily name Unčanin live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in 6 Croatian counties and two other places, mostly in Imotski (<5), Cara on the Island of Korcula (<5), Zagreb (<5), Hrvatska Dubica in Hrvatska Kostajnica area (<5), and in Pula (<5).
Outside Croatia
Family name Unčanin is present in 9 countries on four continents. The family name "Uncanin " is used by small number of people in the Philippines and small number in the United States.