Kuštro families are Croats and they are mostly from western Bosnia and according to some sources sa Kupresa. In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Drvar area) and in Beli Manastir area. In Brda in Western Bosnia every eighth inhabitant had the family name Kuštro.
Prevalence
About 90 people with faimily name Kuštro live in Croatia today, in 40 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in 7 Croatian counties, in 11 cities and 10 other places, mostly in Osijek (20), Petrijevci in Valpovo area (15), Split (<10), Bilje in Osijek area (<10), and in Knezevi Vinogradi in Beli Manastir area (<10).
Outside Croatia
Family name Kuštro (including: Kustro , Custro and Kushitero ) is present in 11 countries worldwide.
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.
