Kulaš families are mainly Croats and they are mostly from Benkovac area , rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Benkovac area and in Zagreb. In Polača in Benkovac area every seventh inhabitant had the family name Kulaš.
Prevalence
About 790 people with faimily name Kulaš live in Croatia today, in 320 households. There were 500 of them in the middle of the past century, and their number increased by 60 percent. They are located in almost all Croatian counties, in 46 cities and 57 other places, mostly in Polaca in Benkovac area (160), Zagreb (105), Biograd na moru (55), Dubrovnik (40), and in Zadar (35).
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.