In Croatia, Vanko families are Croats (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Pleternica area and in Djakovo area.
Prevalence
Only a few people with faimily name Vanko live in Croatia today, in three households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only threee Croatian places: in Osijek (<5), Bektez in Orahovica area (<5), and in Bracevci in Djakovo area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.