In Croatia, Karešin families are generally Croats (from Pozega area ), rarely Ukrainians (from Vukovar area ), and barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska and in Pozega area.
Prevalence
About 50 people with faimily name Karešin live in Croatia today, in 20 households. There were 20 of them in the middle of the past century, and their number more than doubled. They are located in 6 Croatian counties, in 6 cities and two other places, mostly in Slavonski Brod (20), Nova Gradiska (<10), Magic Mala in Pozega area (<10), Zagreb (<10), and in Pozega (<10).
Outside Croatia
Family name Karešin (including: Karesin , Kareshin ) is present in 8 countries on three continents.