Košta families are Croats and they are mostly from the Island of Ugljan. In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and on the Island of Ugljan.
Prevalence
About 260 people with faimily name Košta live in Croatia today, in 120 households. There were 240 of them in the middle of the past century, and their number increased by 10 percent. They are located in 10 Croatian counties, in 15 cities and 9 other places, mostly in Preko on the Island of Ugljan (85), Zadar (70), Split (40), Rijeka (25), and in Dubrovnik (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1927 in source Emigration Commission Zagreb.