Slivka families are predominantly Croats and they are mostly from Orahovica area , less frequently Slovaks (from Nasice ). In the past century, relatively most of Croatian residents bearing this family name were born in Nasice and Osijek.
Prevalence
About 90 people with faimily name Slivka live in Croatia today, in 40 households. There were 60 of them in the middle of the past century, and their number increased by 50 percent. They are located in 7 Croatian counties, in 10 cities and 15 other places, mostly in Osijek (25), Breznica Nasicka in Nasice area (10), Zagreb (<10), Kraljevica (<10), and in Jelisavac (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.