In Croatia, Mihlin families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
About 10 people with faimily name Mihlin live in Croatia today, in two households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only threee naselja i to in Strmec (<5), Odranski Obrez (<5), and in Rijeka (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1679 in source Catholic Church Parish Records.