In Croatia, Millos families are Croats (from Porec ). In the past century, relatively most of Croatian residents bearing this family name were born in Porec and in Slovenia.
Prevalence
Only a few people with faimily name Millos live in Croatia today, in one household only. They are located in only one small Croatian place, in Mugeba (<10).
Outside Croatia
Family name Millos (including: Mellos , Milloss ) is present in 22 countries worldwide. "Mellos " is used by some 500 people in Greece , about 400 in Brazil , and some 200 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1750 in source 18th Century Census.