In Croatia, Masnikosa families are predominantly Serbs, rarely Croats (from Obrovac area ). In the past century, relatively most of Croatian residents bearing this family name were born in Knin area and in Obrovac area.
Prevalence
About 50 people with faimily name Masnikosa live in Croatia today, in 30 households. There were 140 of them in the middle of the past century, and their number decreased significantly. They are located in the most of Croatian counties, in 11 cities and 5 other places, mostly in Biovicino Selo in Knin area (<10), Velika Gorica (<10), Ivosevci in Knin area (<10), Zadar (<5), and in Kutina (<5).
Outside Croatia
Family name Masnikosa is present in 10 countries on four continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.