In Croatia, Tučak families are Croats (from Ozalj ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and Ozalj. In Zorkovac in Ozalj every fourtieth inhabitant had the family name Tučak.
Prevalence
About 10 people with faimily name Tučak live in Croatia today, in five households only. There were 110 of them in the middle of the past century, and their number decreased significantly. They are located in only five Croatian places: in Zorkovac na Kupi (<10), Karlovac (<5), Zorkovac (<5), Donje Stative in Duga Resa area (<5), and in Vukoder (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.