In Croatia, Smoljak families are predominantly Croats (from Ivanec area ), rarely Serbs, and barely Roms (from Osijek ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and Zagreb.
Prevalence
About 60 people with faimily name Smoljak live in Croatia today, in 20 households. There were 70 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 6 Croatian counties, in 6 cities and 5 other places, mostly in Karlovac (20), Zagreb (15), Lipovnik in Ivanec area (10), Osijek (<5), and in Varazdin (<5).
Outside Croatia
Family name Smoljak (including: Smolyak , Smoliak ) is present in 25 countries worldwide.