In Croatia, Mestnik families are Croats (from Ozalj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ozalj area and in Zagreb. In Donji Bukovac Žakanjski in Ozalj area every ninth inhabitant had the family name Mestnik.
Prevalence
Only a few people with faimily name Mestnik live in Croatia today, in five households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only two Croatian places: in Zagreb (<5) and Donji Bukovac Zakanjski in Ozalj area (<5).
Outside Croatia
Family name Mestnik is present in 11 countries on four continents. The family name "Mestnik " is used by some 90 people in the United States , about 70 in Brazil , and small number of people in El Salvador. "Mestnick " 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 few times, the first time 1923 in source Emigration Commission Zagreb.