In Croatia, Koce families are Hungarians (from Banat, Vojvodina ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek area and in Beli Manastir area.
Prevalence
Only a few people with faimily name Koce live in Croatia today, in three households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only four Croatian places: in Zagreb (<5), Beli Manastir (<5), Karanac in Beli Manastir area (<5), and in Lug in Osijek area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.