In Croatia, Košulj families are Croats (from Nasice area ). In the past century, relatively most of Croatian residents bearing this family name were born in Krapina area and in Nasice.
Prevalence
About 10 people with faimily name Košulj live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only five Croatian places: in Gornji Macelj in Krapina area (<10), Breznica Nasicka in Nasice area (<5), Lila (<5), Zagreb (<5), and in Nasice (<5).
Outside Croatia
Family name Košulj (including: Kosulj , Koshuli ) is present in three countries.
