Sapunar families are Croats and they are mostly from the Island of Brac. In the past century, relatively most of Croatian residents bearing this family name were born in Split and on the Island of Brac. In Ložišća on the Island of Brac every sixth inhabitant had the family name Sapunar.
Prevalence
About 100 people with faimily name Sapunar live in Croatia today, in 50 households. There were 120 of them in the middle of the past century, and their number decreased by 20 percent. They are located in four Croatian counties, in 8 cities and 7 other places, mostly in Split (55), Zagreb (15), Lozisca on the Island of Brac (15), Solin (<10), and in Milna on the Island of Brac (<5).
Outside Croatia
Family name Sapunar is present in 13 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.