In Croatia, Lustek families are Croats (from Samobor ). In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and in Orahovica area. In Falašćak in Samobor every sixth inhabitant had the family name Lustek.
Prevalence
About 30 people with faimily name Lustek live in Croatia today, in 11 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in only four naselja i to in Sveti Martin Pod Okicem (10), Zagreb (<10), Samobor (<5), and in Slatina (<5).
Outside Croatia
Family name Lustek is present in four countries on two continents. The family name "Lustek " is used by small number of people in the United States. "Lusteck " is used by small number of people in the United States and small number in Germany.