In Croatia, Herzog families are Croats (from Prelog area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Osijek.
Prevalence
About 10 people with faimily name Herzog live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only two Croatian places: in Josipovac (<5) and Kotoriba in Prelog area (<5).
Outside Croatia
Family name Herzog is present in 77 countries worldwide. The family name "Herzog " is used by some 30000 people in Germany , about 10000 in the United States , and some 3000 people in Brazil.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.