In Croatia, Šipuljak families are Croats (from Sveti Ivan Zelina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Sveti Ivan Zelina area.
Prevalence
About 60 people with faimily name Šipuljak live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number increased by 10 percent. They are located in 6 Croatian counties, in 8 cities and 5 other places, mostly in Rakovec in Sveti Ivan Zelina area (15), Marcani (<10), Banicevec in Sveti Ivan Zelina area (<10), Krk on the Island of Krk (<10), and in Graberje Ivanicko (<10).
Outside Croatia
Family name Šipuljak is present in this form only in Croatia.