Korica families are mainly Croats and they are mostly from Vinkovci area , often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Gospic and Zagreb. In Mogorić in Gospic every sixth inhabitant had the family name Korica.
About 220 people with faimily name Korica live in Croatia today, in 110 households. There were 430 of them in the middle of the past century, and their number halved. They are located in almost all Croatian counties, in 22 cities and 24 other places, mostly in Zagreb (65), Rijeka (25), Mogoric (20), Zadar (15), and in Vinkovci (15).