Rojko families are Croats and they are mostly from Mursko Sredisce area. In the past century, relatively most of Croatian residents bearing this family name were born in Prelog and in Mursko Sredisce area.
Prevalence
About 80 people with faimily name Rojko live in Croatia today, in 40 households. There were 70 of them in the middle of the past century, and their number increased by 10 percent. They are located in 7 Croatian counties, in 8 cities and 16 other places, mostly in Otok (15), Zagreb (<10), Labin (<10), Nedelisce in Cakovec area (<10), and in Strigova in Mursko Sredisce area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1938 in source Phone Book - Zagreb 1938.