In Croatia, Barko families are Croats (from Ogulin area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ogulin area and in Ogulin.
Prevalence
About 40 people with faimily name Barko live in Croatia today, in 18 households. There were 40 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, four cities and threee other places, mostly in Carevo Polje in Ogulin area (15), Zadar (10), Zagreb (<10), Velika Gorica (<5), and in Bestovje in Samobor area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.