Strunjak 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 Slovenia. In Vučilčevo in Klanjec area every third inhabitant had the family name Strunjak.
Prevalence
About 130 people with faimily name Strunjak live in Croatia today, in 60 households. There were 160 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 6 Croatian counties, in 7 cities and 12 other places, mostly in Zagreb (45), Gornji Cemehovec in Zabok area (15), Bjelovar (10), Zapresic (10), and in Velika Cresnjevica in Djurdjevac area (10).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States. Family name Strunjak is present in three countries on two continents. "Struniak " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.