In Croatia, Rančak families are generally Croats (from Slatina ), very rarely Hungarians (from Osijek area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Slatina area.
Prevalence
About 10 people with faimily name Rančak live in Croatia today, in 7 households. There were 20 of them in the middle of the past century, and their number halved. They are located in two Croatian cities only, in Osijek (<10) and Slatina (<10).