In Croatia, Defar families are generally Croats (from Pazin area ), rarely Italians (from Rovinj area ), and barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Pazin and Pula.
Prevalence
About 50 people with faimily name Defar live in Croatia today, in 20 households. There were 60 of them in the middle of the past century, and their number decreased by 30 percent. They are located in four Croatian counties, in 6 cities and four other places, mostly in Zagreb (15), Vrsar in Rovinj area (10), Tinjan in Pazin area (<10), Pazin (<10), and in Split (<5).
Outside Croatia
Family name Defar is present in 16 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.