In Croatia, Šelko families are Croats (from Sveti Ivan Zelina ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Sveti Ivan Zelina. In Polonje in Sveti Ivan Zelina every fourtieth inhabitant had the family name Šelko.
Prevalence
About 10 people with faimily name Šelko live in Croatia today, in three households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only one small Croatian place, in Polonje (15).