In Croatia, Mrlais families are Croats (from Peljesac Peninsula ). In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik.
Prevalence
About 10 people with faimily name Mrlais live in Croatia today, in four households only. They are located in only four Croatian places: in Brasina in Dubrovnik area (<5), Ston on the Peljesac peninsula (<5), Zagreb (<5), and in Boljenovici on the Peljesac peninsula (<5).
Outside Croatia
Family name Mrlais is present in this form only in Croatia.