In Croatia, Zanko families are Croats by relative majority (from Buzet area ), equally Italians (also from Buzet area ), and rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Slovenia and in Buzet. In Vižintini in Buzet area every eighth inhabitant had the family name Zanko.
Prevalence
About 10 people with faimily name Zanko live in Croatia today, in three households only. There were 50 of them in the middle of the past century, and their number decreased significantly. They are located in only threee Croatian places: in Vizintini (<10) and Livade (<5) in Buzet area, and in Umag (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1927 in source Emigration Commission Zagreb.