In Croatia, Hertz families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Pakrac.
Prevalence
Only a few people with faimily name Hertz live in Croatia today, in two households only. They are located in only four naselja i to in Sesvete (<5), Zagreb (<5), Pakrac (<5), and in Grubisno Polje (<5).
Outside Croatia
Family name Hertz is present in 71 countries worldwide. The family name "Hertz " is used by some 6000 people in the United States , about 2000 in Germany , and some 2000 people in Brazil. "Hertzsch " is used by some 400 people in Germany and small number in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.