In Croatia, Duzbaba families are predominantly Croats (from Opatija ), rarely Czechs (from Daruvar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Daruvar area and in Novska.
Prevalence
About 10 people with faimily name Duzbaba live in Croatia today, in 7 households. There were 20 of them in the middle of the past century, and their number halved. They are only located in in 6 Croatian cities and another small place , mostly in Donji Sredjani in Daruvar area (<10), Rijeka (<5), Daruvar (<5), Split (<5), and in Kaniska Iva (<5).