In Croatia, Vlacich families are Croats (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Labin.
Prevalence
About 50 people with faimily name Vlacich live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number multiplied. They are located in one Croatian city only, in Rijeka (<5).
Outside Croatia
Family name Vlacich is present in 8 countries on four continents. The family name "Vlacich " is used by some 200 people in the United States , about 100 in Afghanistan , and small number of people in France.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 2007 in source Encyclopaedia of Croatian Surnames.