In Croatia, Hepp families are Croats (from Donji Miholjac ). In the past century, relatively most of Croatian residents bearing this family name were born in Orahovica and Rijeka.
Prevalence
About 10 people with faimily name Hepp live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located in four Croatian cities only: in Rijeka (<10), Donji Miholjac (<5), Skrljevo (<5), and in Zagreb (<5).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States (1) and Germany (1). Family name Hepp (including: Höpp , Chepp ) is present in 37 countries worldwide. The family name "Hepp " is used by some 4000 people in Germany , about 3000 in the United States , and some 2000 people in Brazil. "Chepp " 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 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.