In Croatia, Rudančić families are generally Croats (from Ogulin area ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ogulin area.
Prevalence
About 30 people with faimily name Rudančić live in Croatia today, in 12 households. There were 60 of them in the middle of the past century, and their number halved. They are only located in threee Croatian cities and 5 other places, mostly in Zagreb (<10), Vinica in Ivanec area (<10), Josipdol in Ogulin area (<10), Rijeka (<5), and in Kriz in Ivanic-Grad area (<5).
Outside Croatia
Family name Rudančić is present in this form only in Croatia.