Hrustek families are Croats and they are mostly from Cakovec area. In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and in Cakovec area.
Prevalence
About 80 people with faimily name Hrustek live in Croatia today, in 30 households. There were 80 of them in the middle of the past century, and their number remains constant. They are located in two Croatian counties, two cities and 11 other places, mostly in Mala Subotica in Cakovec area (10), Cakovec (10), and in Okrugli Vrh (10), Lopatinec (<10) and Vucetinec (<10) in Cakovec area.
Outside Croatia
Family name Hrustek is present in 6 countries on two continents. The family name "Hrustek " is used by few 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 2007 in source Encyclopaedia of Croatian Surnames.