Ivko families are Croats and they are mostly from Ivanec area. In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec area and in Varazdin. In Maruševec in Ivanec area every twentieth inhabitant had the family name Ivko.
Prevalence
About 60 people with faimily name Ivko live in Croatia today, in 30 households. There were 100 of them in the middle of the past century, and their number decreased by 30 percent. They are only located in in 7 Croatian cities and 5 other places, mostly in Marusevec in Ivanec area (15), Zagreb (15), Varazdin (10), and in Greda (<10) and Biljevec (<10) in Ivanec area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.