Buljac families are Croats and they are mostly from Sinj area. In the past century, relatively most of Croatian residents bearing this family name were born in Sinj area and in Sinj.
Prevalence
About 100 people with faimily name Buljac live in Croatia today, in 40 households. There were 70 of them in the middle of the past century, and their number increased by 40 percent. They are only located in in 7 Croatian cities and four other places, mostly in Hrvace in Sinj area (50), Split (20), Sinj (<10), Zagreb (<10), and in Solin (<5).
Outside Croatia
Family name Buljac is present in 6 countries on three continents.
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.