In Croatia, Špeljak families are generally Croats (from Zabok area ), very rarely Slovenes (from Klanjec area ), and barely Bosniaks (from Kosovo ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zapresic. In Donji Čemehovec in Klanjec area nearly every inhabitant had the family name Špeljak.
Prevalence
About 50 people with faimily name Špeljak live in Croatia today, in 20 households. There were 70 of them in the middle of the past century, and their number decreased by 40 percent. They are located and 5 other Croatian places, mostly in Zagreb (20), Movrac in Zabok area (<10), Vetovo in Orahovica area (<10), Dubravica in Klanjec area (<5), and in Zapresic (<5).
Outside Croatia
Family name Špeljak (including: Shepelyak , Speljak ) is present in 8 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.