In Croatia, Ranac families are Croats (from Cazma area ). In the past century, relatively most of Croatian residents bearing this family name were born in Cazma area and in Sisak.
Prevalence
About 20 people with faimily name Ranac live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in only four naselja i to in Zagreb (10), Sartovac (<10), and in Mali Losinj (<5) and Veli Losinj (<5) on the Island of Losinj.