In Croatia, Gržeta families are generally Croats (from Nin area ), very rarely Slovenes (from Rijeka area ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Zagreb. In Klada in Senj every thirtieth inhabitant had the family name Gržeta.
Prevalence
About 60 people with faimily name Gržeta live in Croatia today, in 30 households. There were 80 of them in the middle of the past century, and their number decreased by 20 percent. They are only located in four Croatian cities and 5 other places, mostly in Rijeka (25), Vir in Nin area (15), Lovran in Opatija area (<10), Viskovo in Rijeka area (<10), and in Zagreb (<10).
Outside Croatia
At least three families with this surname emigrated from Croatia to France (2) and the United States (1). Family name Gržeta is present in four 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.