Mašković families are Croats and they are mostly from the Island of Korcula. In the past century, relatively most of Croatian residents bearing this family name were born in Split and on the Island of Korcula.
Prevalence
About 90 people with faimily name Mašković live in Croatia today, in 40 households. There were 60 of them in the middle of the past century, and their number increased by 70 percent. They are only located in in 8 Croatian cities and four other places, mostly in Blato on the Island of Korcula (45), Split (35), Zagreb (<10), Dubrovnik (<10), and in Rijeka (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.