In Croatia, Tonkovac families are almost entirely Croats (from Osijek area ), barely Slovaks (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek area and in Osijek.
Prevalence
About 60 people with faimily name Tonkovac live in Croatia today, in 18 households. There were 30 of them in the middle of the past century, and their number doubled. They are located in only five naselja i to in Cepin in Osijek area (45), Osijek (10), Reka (<5), Koprivnica (<5), and in Josipovac Punitovacki in Djakovo area (<5).
Outside Croatia
Family name Tonkovac is present in this form only in Croatia.
