Udorović families are usually Croats and they are mostly from Otocac , rarely Roms (from Gospic ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and Otocac. In Puškarići in Ogulin every third inhabitant had the family name Udorović.
About 460 people with faimily name Udorović live in Croatia today, in 150 households. There were 90 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 23 cities and 66 other places, mostly in Karlovac (90), Brinje in Senj area (35), Ostarije in Ogulin area (35), Skakavac (30), and in Mali Erjavec (25).