In Croatia, Svačko families are Croats (from Varazdin area ). In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin area and in Krizevci area.
Prevalence
About 10 people with faimily name Svačko live in Croatia today, in four households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in only five naselja i to in Cargovec (<10) and Vidovec (<5) in Varazdin area, Koprivnica (<5), Porec (<5), and in Musalez (<5).
Outside Croatia
Family name Svačko (including: Shvachko , Svacko and Svacico ) is present in 14 countries on four continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.