In Croatia, Flatz families are Croats (from Koprivnica ). In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and Zagreb.
Prevalence
About 10 people with faimily name Flatz live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in threee Croatian counties, two cities and another small place , mostly in Zagreb (<10), Koprivnica (<5), and in Draganic in Karlovac area (<5).
Outside Croatia
Family name Flatz is present in 10 countries on four continents. The family name "Flatz " is used by some 500 people in Austria , about 100 in the United States , and some 60 people in Switzerland.
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.
