In Croatia, Romančuk families are predominantly Croats (from Nova Gradiska area ), rarely Ukrainians (from Bosnian Krajina ). In the past century, relatively most of Croatian residents bearing this family name were born in Bosnian Krajina (Prijedor area) and in Nova Gradiska.
Prevalence
About 20 people with faimily name Romančuk live in Croatia today, in 8 households. They are only located in four Croatian cities and two other places, mostly in Zagreb (<10), Kupljenovo (<10), Masic in Nova Gradiska area (<10), Cakovec (<5), and in Ogulin (<5).