Ernješ families are Croats and they are mostly from Djakovo area. In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo area and in Osijek. In Koritna in Djakovo area every fourtieth inhabitant had the family name Ernješ.
Prevalence
About 90 people with faimily name Ernješ live in Croatia today, in 30 households. There were 30 of them in the middle of the past century, and their number tripled. They are only located in in 10 Croatian cities and 9 other places, mostly in Cepin in Osijek area (15), in Semeljci (15) and Gorjani (10) in Djakovo area, Nasice (<10), and in Dugo Selo (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.