Žmak families are Croats and they are mostly from Pula. In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Rijeka. In Lanišće in Buzet area every thirtieth inhabitant had the family name Žmak.
Prevalence
About 110 people with faimily name Žmak live in Croatia today, in 50 households. There were 120 of them in the middle of the past century, and their number decreased by 10 percent. They are located in threee Croatian counties, in 7 cities and 9 other places, mostly in Pula (50), Rijeka (15), Zagreb (<10), Umag (<10), and in Medulin in Pula area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.