In Croatia, Koropatnicki families are generally Croats (from Slavonski Brod ), rarely Ukrainians (from Pleternica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and in Pleternica area.
Prevalence
About 30 people with faimily name Koropatnicki live in Croatia today, in 10 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in only four naselja i to in Slavonski Brod (20), Kaniza in Pleternica area (<10), Zagreb (<5), and in Ivanec (<5).
Outside Croatia
Family name Koropatnicki is present in four countries on two continents. The family name "Koropatnicki " is used by some 50 people in the United States and small number in Canada.