Čulo families are Croats and they are mostly from western Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Tomislavgrad area) and in Zagreb. In Bukova Gora in Western Bosnia nearly every inhabitant had the family name Čulo.
Prevalence
About 470 people with faimily name Čulo live in Croatia today, in 180 households. There were 30 of them in the middle of the past century, and their number multiplied. They are located in 10 Croatian counties, in 21 cities and 22 other places, mostly in Zagreb (170), Bjelovar (70), Osijek (35), Split (35), and in Vinkovci (30).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.