Oberan families are Croats and they are mostly from east Herzegovina. In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik and in East Herzegovina (Trebinje area). In Velja Međa in East Herzegovina every fourth inhabitant had the family name Oberan.
Prevalence
About 180 people with faimily name Oberan live in Croatia today, in 60 households. There were 70 of them in the middle of the past century, and their number more than doubled. They are located in 8 Croatian counties, in 6 cities and 27 other places, mostly in Dubrovnik (35), Mokosica (20), Zagreb (15), Gornje Obuljeno (15), and in Mlini in Dubrovnik area (10).
Outside Croatia
Family name Oberan is present in 6 countries on four continents. The family name "Oberan " is used by some 60 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.