In Croatia, Sebelja families are Croats by relative majority (from Pula ), equally Italians (also from Pula ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula.
Prevalence
Only a few people with faimily name Sebelja 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 Pula (<5).
Outside Croatia
Family name Sebelja (including: Sebelia , Sebeglia ) is present in 6 countries on two continents. "Sebelia " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.