In Croatia, Ratkovac families are Croats (from Bjelovar ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar.
Prevalence
About 20 people with faimily name Ratkovac live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number doubled. They are located in only four Croatian places: in Prespa (15), Daruvar (<5), Prokljuvani (<5), and in Starcevljani in Bjelovar area (<5).