Mazur families are usually Croats and they are mostly from Osijek area , rarely Ukrainians. In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Osijek area.
Prevalence
About 150 people with faimily name Mazur live in Croatia today, in 60 households. There were 120 of them in the middle of the past century, and their number increased by 30 percent. They are located in 6 Croatian counties, in 6 cities and 14 other places, mostly in Cepin in Osijek area (30), Osijek (25), Zagreb (15), Bizovac in Valpovo area (15), and in Klostar Ivanic in Ivanic-Grad area (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.