Ćurko families are Croats and they are mostly from Nin. According to some sources they are from Krusevo near Obrovac. In the past century, relatively most of Croatian residents bearing this family name were born in Nin and Zadar.
Prevalence
About 210 people with faimily name Ćurko live in Croatia today, in 110 households. There were 150 of them in the middle of the past century, and their number increased by 40 percent. They are located in 10 Croatian counties, in 14 cities and 10 other places, mostly in Zagreb (55), Zadar (45), Nin (45), Rijeka (20), and in Knin (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.