Culjak families are Croats and they are mostly from Lepoglava area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Lepoglava area. In Veternica in Lepoglava area every seventh inhabitant had the family name Culjak.
Prevalence
About 160 people with faimily name Culjak live in Croatia today, in 70 households. There were 170 of them in the middle of the past century, and their number decreased by 0 percent. They are located in 9 Croatian counties, in 11 cities and 19 other places, mostly in Zagreb (55), Djakovo (15), in Novi Golubovec (15) and Veternica (15) in Lepoglava area, and in Kutina (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.