Mravunac families are Croats and they are mostly from Slunj area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Karlovac.
Prevalence
About 260 people with faimily name Mravunac live in Croatia today, in 120 households. There were 260 of them in the middle of the past century, and their number remains constant. They are located in the most of Croatian counties, in 20 cities and 31 other places, mostly in Karlovac (45), Zagreb (35), Cetingrad in Slunj area (20), Recica (15), and in Osijek (10).
Outside Croatia
At least 15 families with this surname emigrated from Croatia to: Australia (5), Canada (3), the United States (3), Germany (3), and to France (1). Family name Mravunac is present in 7 countries on three continents. The family name "Mravunac " is used by small number of people in Canada , small number in the United States , and small number of people in Australia.
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.