In Croatia, Križnić families are predominantly Serbs, rarely Slovenes (from Buje ). In the past century, relatively most of Croatian residents bearing this family name were born in Buje.
Prevalence
Only a few people with faimily name Križnić live in Croatia today, in three households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in two Croatian cities only, in Umag (<5) and Vukovar (<5).
Outside Croatia
Family name Križnić (including: Kriznic , Krizhanich ) is present in 11 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1925 in source Emigration Commission Zagreb.