Černi families are usually Croats and they are mostly from Virovitica , rarely Czechs. In the past century, relatively most of Croatian residents bearing this family name were born in Virovitica and Zagreb.
Prevalence
About 180 people with faimily name Černi live in Croatia today, in 80 households. There were 280 of them in the middle of the past century, and their number decreased by 40 percent. They are located in the most of Croatian counties, in 24 cities and 18 other places, mostly in Zagreb (25), Virovitica (20), Slatina (10), Osijek (10), and in Pakrac (10).