In Croatia, Otržan families are predominantly Croats (from Cazma area ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Cazma area and in Vrbovec area.
Prevalence
Only a few people with faimily name Otržan live in Croatia today, in four households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only threee naselja i to in Zagreb (<5), and in Farkasevac (<5) and Kabal (<5) in Cazma area.
Outside Croatia
Family name Otržan is present in this form only in Croatia.