In Croatia, Molek families are Croats (from Bosnian Posavina ). In the past century, relatively most of Croatian residents bearing this family name were born in Delnice area and in Bosanian Posavina (Bosanski Novi area).
Prevalence
About 20 people with faimily name Molek live in Croatia today, in 9 households. There were 20 of them in the middle of the past century, and their number remains constant. They are only located in threee Croatian cities and 6 other places, mostly in Rijeka (<10), Ivanja Reka (<5), Mavrinci in Rijeka area (<5), Lokve in Delnice area (<5), and in Banfi in Mursko Sredisce area (<5).
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.