In Croatia, Kušće families are mainly Croats (from Buje area ), equally Italians (also from Buje area ). In the past century, relatively most of Croatian residents bearing this family name were born in Umag and Buje. In Makovci in Buje area every fifth inhabitant had the family name Kušće.
Prevalence
About 30 people with faimily name Kušće live in Croatia today, in 10 households. There were 10 of them in the middle of the past century, and their number tripled. They are only located in two Croatian cities and 5 other places, mostly in Groznjan in Buje area (<10), Umag (<10), Babici (<5), Momjan (<5), and in Makovci in Buje area (<5).