Jurinjak families are Croats and they are mostly from Varazdin area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Varazdin.
Prevalence
About 300 people with faimily name Jurinjak live in Croatia today, in 140 households. There were 280 of them in the middle of the past century, and their number increased by 10 percent. They are located in the most of Croatian counties, in 27 cities and 48 other places, mostly in Radoboj in Krapina area (50), Zagreb (40), Varazdin (20), and in Sveti Ilija (15) and Vidovec (15) in Varazdin area.
Outside Croatia
Family name Jurinjak is present in four countries on two continents. The family name "Jurinjak " is used by small number of people in the United States and small number in Austria.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.