Jakopčević families are Croats and they are mostly from Zabok area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Klanjec. In Police in Klanjec every tenth inhabitant had the family name Jakopčević.
Prevalence
About 200 people with faimily name Jakopčević live in Croatia today, in 80 households. There were 230 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 13 cities and 15 other places, mostly in Zagreb (85), Klostar Ivanic in Ivanic-Grad area (15), Police (15), Cerna in Zupanja area (10), and in Druzilovec in Zabok area (<10).
Outside Croatia
Family name Jakopčević is present in 6 countries on three continents.
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.