Gubić families are almost entirely Croats and they are mostly from Bosnian Posavina , rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Bosanska Gradiska area) and in Nova Gradiska.
About 430 people with faimily name Gubić live in Croatia today, in 170 households. There were 120 of them in the middle of the past century, and their number more than tripled. They are located in almost all Croatian counties, in 26 cities and 59 other places, mostly in Zagreb (60), Savski Bok in Nova Gradiska area (50), Nova Gradiska (40), Brodski Stupnik in Pleternica area (35), and in Podgorac in Nasice area (25).