In Croatia, Hržek families are Croats (from Ivanic-Grad area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ivanic-Grad area.
Prevalence
About 10 people with faimily name Hržek 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 only threee naselja i to in Zagreb (<5), Blagusa (<5), and in Kasina (<5).
Outside Croatia
Family name Hržek (including: Hrzek , Herzek ) is present in three countries on two continents. "Herzek " is used by some 50 people in the United States.