Erjavac families are Croats and they are mostly from Delnice area. According to some sources they are from Slovenia. In the past century, relatively most of Croatian residents bearing this family name were born in Delnice area and in Slavonski Brod area. In Ravan in Slavonski Brod area every ninth inhabitant had the family name Erjavac.
Prevalence
About 110 people with faimily name Erjavac live in Croatia today, in 40 households. There were 130 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 9 Croatian counties, in 14 cities and 14 other places, mostly in Ravna Gora in Delnice area (40), Ravan in Slavonski Brod area (20), Rijeka (10), Gracisce in Pazin area (<10), and in Osijek (<10).
Outside Croatia
Family name Erjavac (including: Eriavaz , Eriavac ) is present in four countries on two continents. The family name "Erjavac " is used by small number of 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 2007 in source Encyclopaedia of Croatian Surnames.
