In Croatia, Bartoniček families are generally Croats (from Grubisno Polje area ), very rarely Czechs (from Daruvar area ), and barely Slovaks (from Novska area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Bjelovar.
Prevalence
About 60 people with faimily name Bartoniček live in Croatia today, in 20 households. There were 40 of them in the middle of the past century, and their number increased by 70 percent. They are only located in in 7 Croatian cities and 9 other places, mostly in Zagreb (20), Donja Rasenica (<10), Cernik in Rijeka area (<10), Novska (<10), and in Sesvete (<5).
Outside Croatia
Family name Bartoniček (including: Bartonícek , Bartonicek and Bartoniczek ) is present in five countries on two continents.