Šepac families are Croats and they are mostly from Otocac. In the past century, relatively most of Croatian residents bearing this family name were born in Otocac and Karlovac.
Prevalence
About 240 people with faimily name Šepac live in Croatia today, in 100 households. There were 270 of them in the middle of the past century, and their number decreased by 10 percent. They are located in the most of Croatian counties, in 17 cities and 30 other places, mostly in Rijeka (35), Kuterevo (35), Zagreb (25), Karlovac (25), and in Kukuljanovo (15).
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.