In Croatia, Erny families are Croats (from Opatija area ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
Only a few people with faimily name Erny live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only threee Croatian places: in Rijeka (<5), and in Sapjane (<5) and Rupa (<5) in Opatija area.
Outside Croatia
Family name Erny (including: Herny , Ernyy ) is present in 28 countries worldwide. The family name "Erny " is used by some 800 people in the United States , about 700 in Indonesia , and some 500 people in France. "Herny " is used by some 400 people in Indonesia , about 100 in the United States , and small number of people in France.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.