In Croatia, Lutz families are generally Croats (from Duga Resa ), very rarely Germans (from Ogulin ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and Zagreb.
Prevalence
About 30 people with faimily name Lutz live in Croatia today, in 17 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in 6 Croatian counties, in 9 cities and two other places, mostly in Slavonski Brod (<10), Zagreb (<10), Duga Resa (<5), Puskarici (<5), and in Rijeka (<5).
Outside Croatia
Family name Lutz (including: Luetz , Lütz ) is present in 86 countries worldwide. The family name "Lutz " is used by some 60000 people in Germany , about 50000 in the United States , and some 8000 people in Brazil. "Luetz " is used by some 300 people in Germany , about 80 in Brazil , and small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.