Kopun families are Croats and they are mostly from Garesnica area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Garesnica area. In Kuzminec Miljanski in Klanjec area every ninth inhabitant had the family name Kopun.
Prevalence
About 80 people with faimily name Kopun live in Croatia today, in 30 households. There were 100 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 8 Croatian counties, in 9 cities and 8 other places, mostly in Zagreb (35), Slabinja in Hrvatska Kostajnica area (<10), Sveti Ivan Zelina (<10), Bregana (<10), and in Velika Trnovitica in Garesnica area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.