Kukulj families are mainly Croats and they are mostly from Imotsko , but often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Imotsko and Zagreb. In Blatuša in Glina area every seventh inhabitant had the family name Kukulj.
Prevalence
About 180 people with faimily name Kukulj live in Croatia today, in 80 households. There were 220 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 23 cities and 15 other places, mostly in Imotski (40), Blatusa in Glina area (35), Zagreb (30), Donji Vinjani (20), and in Rovinj (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.