Mostarac families are usually Croats and they are mostly from middle Bosnia , rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Maglaj area) and in Western Bosnia (Livno area). In Matina in Middle Bosnia every tenth inhabitant had the family name Mostarac.
Prevalence
About 150 people with faimily name Mostarac live in Croatia today, in 60 households. There were 40 of them in the middle of the past century, and their number more than tripled. They are located in 10 Croatian counties, in 15 cities and 17 other places, mostly in Zagreb (60), Metkovic (20), Sesvete (15), Rijeka (<10), and in Kutina (<10).
Outside Croatia
Family name Mostarac is present in 10 countries on three continents. The family name "Mostarac " is used by small number of people in Canada , small number in the United States , and small number of people in Bulgaria.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.
