Grga families are Croats and they are mostly from Trogir area. In the past century, relatively most of Croatian residents bearing this family name were born in Split and in Trogir area.
Prevalence
About 130 people with faimily name Grga live in Croatia today, in 40 households. There were 90 of them in the middle of the past century, and their number increased by 40 percent. They are located in four Croatian counties, in 6 cities and two other places, mostly in Trogir (50), Seget Donji in Trogir area (45), Split (15), Zagreb (<10), and in Sibenik (<5).