In Croatia, Zvirn families are Croats (from Sisak ). In the past century, relatively most of Croatian residents bearing this family name were born in Sisak.
Prevalence
Only a few people with faimily name Zvirn live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Zagreb (<5).
Outside Croatia
Family name Zvirn is present in 17 countries worldwide. "Zwirn " is used by some 500 people in the United States , about 200 in Germany , and some 100 people in Austria.
