In Croatia, Koločaj families are generally Croats (from Novska ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Novska.
Prevalence
About 20 people with faimily name Koločaj live in Croatia today, in 8 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in two Croatian counties, four cities and two other places, mostly in Plesmo (<10), Novska (<10), Kutina (<5), Sisak (<5), and in Mali Losinj on the Island of Losinj (<5).
Outside Croatia
Family name Koločaj (including: Kolocaj , Kolocai ) is present in three countries.
