In Croatia, Kornjača families are mainly Serbs, equally Croats (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Virovitica and Rijeka.
Prevalence
About 10 people with faimily name Kornjača live in Croatia today, in 6 households. There were 40 of them in the middle of the past century, and their number decreased significantly. They are located in only five naselja i to in Rijeka (<10), Belisce (<5), Padjene in Knin area (<5), Opatija (<5), and in Spisic Bukovica in Virovitica area (<5).