In Croatia, Šimićak families are Croats (from Jastrebarsko ). In the past century, relatively most of Croatian residents bearing this family name were born in Jastrebarsko and Karlovac. In Pesak in Jastrebarsko every fifth inhabitant had the family name Šimićak.
Prevalence
About 20 people with faimily name Šimićak live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in two Croatian counties, threee cities and threee other places, mostly in Karlovac (<10), Vuksin Sipak (<10), Draganic in Karlovac area (<5), Donje Stative in Duga Resa area (<5), and in Bosevci (<5).