In Croatia, Mrljak 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 Fratrovci Ozaljski in Ozalj every tenth inhabitant had the family name Mrljak.
Prevalence
About 30 people with faimily name Mrljak live in Croatia today, in 12 households. There were 70 of them in the middle of the past century, and their number decreased significantly. They are only located in threee Croatian cities and threee other places, mostly in Karlovac (15), Fratrovci Ozaljski (<5), Ilovac (<5), Ozalj (<5), and in Duga Resa (<5).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States (1) and Australia (1). Family name Mrljak (including: Merljak , Merlyak and Merliak ) is present in 11 countries on four continents. The family name "Mrljak " is used by small number of people in Australia and small number in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.
