In Croatia, Gherga families are Croats (from Zagreb ).
Prevalence
Only a few people with faimily name Gherga live in Croatia today, in three households only. They are located in two Croatian cities only, in Zagreb (<5) and Gospic (<5).
Outside Croatia
Family name Gherga is present in 10 countries on four continents. The family name "Gherga " is used by some 600 people in Romania , small number in Spain , and small number of people in the United States.
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.