In Croatia, Flass families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Flass live in Croatia today, in three households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Zagreb (<10).
Outside Croatia
Family name Flass is present in five countries on two continents. The family name "Flass " is used by small number of people in the United States.
