In Croatia, Ventura families are Croats (from the Island of Losinj ). In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Losinj and in Sibenik.
Prevalence
Only a few people with faimily name Ventura live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in two Croatian cities only, in Sibenik (<5) and Veli Losinj on the Island of Losinj (<5).
Outside Croatia
Family name Ventura (including: Venttura , Wentura ) is present in 108 countries worldwide. "Wentura " is used by small number of people in the United States and small number in Poland.