Gambiroža families are predominantly Croats and they are mostly from Knin , less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Knin and Zagreb.
Prevalence
About 150 people with faimily name Gambiroža live in Croatia today, in 70 households. There were 190 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 14 cities and 12 other places, mostly in Knin (65), Zagreb (20), Potkonje (<10), Split (<10), and in Osijek (<10).
Outside Croatia
Family name Gambiroža is present in this form only in Croatia.
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.