Smetko families are Croats and they are mostly from Donja Stubica area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Donja Stubica area.
Prevalence
About 270 people with faimily name Smetko live in Croatia today, in 90 households. There were 260 of them in the middle of the past century, and their number remains constant. They are located in 8 Croatian counties, in 10 cities and 32 other places, mostly in Sveti Matej in Donja Stubica area (45), Zagreb (40), Sesvete (40), Kutina (15), and in Graberje Ivanicko (10).
Outside Croatia
At least three families with this surname emigrated from Croatia to: Canada (1), France (1), and to the United States (1). Family name Smetko is present in 9 countries on two continents. The family name "Smetko " is used by small number of people in France and small number in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.