In Croatia, Kusterbanj families are Croats (from Ludbreg area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec area.
Prevalence
Only a few people with faimily name Kusterbanj live in Croatia today, in two households only. They are located in only two Croatian places: in Sibenik (<5) and Krizovljan in Ludbreg area (<5).
Outside Croatia
Family name Kusterbanj is present in this form only in Croatia.
