In Croatia, Gmazel families are Croats (from Sisak ). In the past century, relatively most of Croatian residents bearing this family name were born in Sisak and in Novska area.
Prevalence
About 30 people with faimily name Gmazel live in Croatia today, in 9 households. There were 60 of them in the middle of the past century, and their number halved. They are located in threee Croatian counties, four cities and two other places, mostly in Preloscica (10), Petrinja (<10), Sisak (<5), Zagreb (<5), and in Velika Mlaka (<5).
Outside Croatia
Family name Gmazel is present in three countries on two continents. The family name "Gmazel " is used by small number of people in the United States.