Masnec families are Croats and they are mostly from Krizevci area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Slovenia.
Prevalence
About 150 people with faimily name Masnec live in Croatia today, in 70 households. There were 240 of them in the middle of the past century, and their number decreased by 40 percent. They are located in the most of Croatian counties, in 13 cities and 22 other places, mostly in Zagreb (30), Kutina (20), Krizevci (20), Bockovec in Krizevci area (15), and in Gradec in Vrbovec area (<10).
Outside Croatia
At least one family with this surname emigrated from Croatia to the United States. Family name Masnec is present in 6 countries on two continents. The family name "Masnec " 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 ten times, the first time 1938 in source Emigration Commission Zagreb.