In Croatia, Špirk families are Croats (from Prelog area ). In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and in Prelog area.
Prevalence
About 30 people with faimily name Špirk live in Croatia today, in 15 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in only five naselja i to in Zagreb (15), Palinovec in Prelog area (<10), Koprivnica (<10), Donji Kraljevec in Prelog area (<5), and in Gorican in Cakovec area (<5).
Outside Croatia
Family name Špirk is present in 19 countries worldwide. The family name "Spirk " is used by some 600 people in the United States , about 400 in Germany , and some 200 people in Austria.