In Croatia, Stermasi families are Croats (from the Island of Mljet ). In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik.
Prevalence
About 10 people with faimily name Stermasi live in Croatia today, in three households only. They are located in only two Croatian places: in Maranovici on the Island of Mljet (<10) and Dubrovnik (<5).
Outside Croatia
Family name Stermasi is present in 6 countries on two continents. The family name "Stermasi " is used by some 700 people in Albania , small number in Italy , and small number of people in Canada , small number of people in the United States.