Koren families are mainly Croats and they are mostly from Novi Marof , barely Slovenes (from Slovenia ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Varazdin.
Prevalence
About 1100 people with faimily name Koren live in Croatia today, in 510 households. There were 1400 of them in the middle of the past century, and their number decreased by 20 percent. They are located in almost all Croatian counties, in 50 cities and 137 other places, mostly in Zagreb (325), Varazdin (40), Sesvete (30), Presecno (30), and in Remetinec (25).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1669 in source Catholic Church Parish Records.