In Croatia, Kostreš families are almost entirely Croats (from Bosnian Krajina ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Bosnian Krajina (Teslic area) and in Bosnian Krajina (Kotor Varos area).
Prevalence
About 60 people with faimily name Kostreš live in Croatia today, in 20 households. There were 20 of them in the middle of the past century, and their number tripled. They are located in the most of Croatian counties, in 12 cities and 10 other places, mostly in Zagreb (10), Posavski Bregi (<10), Pisarovina in Jastrebarsko area (<10), Vodice (<10), and in Ploce (<5).
Outside Croatia
Family name Kostreš is present in this form only in Croatia.
