Špiljar families are Croats and they are mostly from Klanjec area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Klanjec area.
Prevalence
About 130 people with faimily name Špiljar live in Croatia today, in 60 households. There were 140 of them in the middle of the past century, and their number decreased by 0 percent. They are located in 9 Croatian counties, in 14 cities and 15 other places, mostly in Zagreb (75), Gredice (<10), Dugo Selo (<10), Jertovec in Zlatar area (<10), and in Donji Skrnik in Pregrada area (<10).
Outside Croatia
Family name Špiljar (including: Shpilyar , Spiljar ) is present in four countries.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.