Grba families are mainly Serbs and they are mostly from Slunj area , but often Croats (from Ogulin ). In the past century, relatively most of Croatian residents bearing this family name were born in Ogulin and in Slunj area. In places Međeđak and Lička Jesenica in Slunj area every fifth inhabitant had the family name Grba.
Prevalence
About 230 people with faimily name Grba live in Croatia today, in 130 households. There were 520 of them in the middle of the past century, and their number decreased significantly. They are located in the most of Croatian counties, in 25 cities and 24 other places, mostly in Zagreb (30), Rijeka (30), in Medjedjak (25) and Plaski (20) in Slunj area, and in Ogulin (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.