Pustahija families are Croats and they are mostly from western Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Drvar area) and in Banja Luka Region, Bosnia (Banja Luka area).
Prevalence
About 120 people with faimily name Pustahija live in Croatia today, in 40 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 14 cities and 13 other places, mostly in Zagreb (30), Velika Gorica (20), Zadar (10), Rijeka (<10), and in Knin (<10).
Outside Croatia
Family name Pustahija is present in 9 countries on four 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.