Grljušić families are Croats and they are mostly from Vrgorac. In the past century, relatively most of Croatian residents bearing this family name were born in Vrgorac and Makarska. In places Stilja , Mijaca and Banja in Vrgorac every ninth inhabitant had the family name Grljušić.
Prevalence
About 300 people with faimily name Grljušić live in Croatia today, in 110 households. There were 200 of them in the middle of the past century, and their number increased by 50 percent. They are located in 10 Croatian counties, in 13 cities and 23 other places, mostly in Banja (40), Vrgorac (35), Split (30), Orebic on the Peljesac peninsula (30), and in Opuzen (20).
Outside Croatia
Family name Grljušić is present in 6 countries on four continents.
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.