In Croatia, Mladjan families are Croats (from Duga Resa ). In the past century, relatively most of Croatian residents bearing this family name were born in Duga Resa and Rijeka. In Stojmerić in Slunj every ninth inhabitant had the family name Mladjan.
Prevalence
Only a few people with faimily name Mladjan live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in two Croatian cities only, in Rijeka (<5) and Duga Resa (<5).
Outside Croatia
Family name Mladjan is present in 7 countries on three continents. The family name "Mladjan " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.