Šeperić families are Croats and they are mostly from Jastrebarsko. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Jastrebarsko.
Prevalence
About 80 people with faimily name Šeperić live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number increased by 10 percent. They are only located in four Croatian cities and 11 other places, mostly in Jastrebarsko (30), Gornja Reka (20), Hrastje Plesivicko (<10), Zagreb (<10), and in Cvetkovic (<10).
Outside Croatia
At least three families with this surname emigrated from Croatia to Canada (2) and the United States (1). Family name Šeperić (including: Seperic , Seperich ) is present in 8 countries on four continents. The family name "Seperic " is used by small number of people in Indonesia , small number in Canada , and small number of people in the United States. "Seperich " is used by small number of people in the United States and small number in Canada.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.