Jakupek families are Croats and they are mostly from Koprivnica area. In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and in Koprivnica area.
Prevalence
About 70 people with faimily name Jakupek live in Croatia today, in 40 households. There were 120 of them in the middle of the past century, and their number decreased by 50 percent. They are located in 7 Croatian counties, in 7 cities and 10 other places, mostly in Koprivnica (25), Zagreb (10), Borovljani in Djurdjevac area (10), Sesvete (<10), and in Sveta Marija in Prelog area (<5).
Outside Croatia
Family name Jakupek is present in 7 countries on three continents.
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.