Deranja families are Croats and they are mostly from Novi Vinodolski. In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik and Rijeka.
Prevalence
About 210 people with faimily name Deranja live in Croatia today, in 100 households. There were 130 of them in the middle of the past century, and their number increased by 60 percent. They are located in 10 Croatian counties, in 14 cities and 14 other places, mostly in Gruda in Dubrovnik area (45), Novi Vinodolski (45), Zagreb (35), Dubrovnik (20), and in Zadar (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.