In Croatia, Slivac families are Croats (from Vrbovsko ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and Vrbovsko. In Damalj in Vrbovsko every second inhabitant had the family name Slivac.
Prevalence
About 30 people with faimily name Slivac live in Croatia today, in 16 households. There were 20 of them in the middle of the past century, and their number increased by 30 percent. They are located in four Croatian counties, four cities and threee other places, mostly in Osijek (10), Orahovica (<10), Damalj (<10), Zagreb (<5), and in Zdenci in Orahovica area (<5).
Outside Croatia
Family name Slivac is present in five countries on two continents. The family name "Slivac " is used by small number of people in France and small number of people in the United States. "Slivatz " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.