In Croatia, Kasprek families are Croats (from Slavonski Brod area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod area and in Slavonski Brod.
Prevalence
About 10 people with faimily name Kasprek live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only four Croatian places: in Bartolovci in Slavonski Brod area (<10), Supetarska Draga on the Island of Rab (<5), Zagreb (<5), and in Gromacnik in Slavonski Brod area (<5).
Outside Croatia
Family name Kasprek is present in 16 countries on three continents. "Kasperek " is used by some 8000 people in Poland , about 1000 in the United States , and some 900 people in Germany.