The municipality ain frass arose after the territorial division of the February 4, 1984, it consists of a large part of the former municipality of Aïn Fekan, completed part of Bouhanifia.
It is a rural municipality these people whose great-grandparents were residents of melrir deemed by his melrir wadi farmers are almost
The municipality ain frass is bounded on the north by the municipality of Bouhanifia south by the municipality of Hounet (wilaya saida), to the east by the town of Aïn Fekan, the west by common Sfisef (wilaya de sidi Bel abbess)
It extends over an area of 174 km2 and has a population of 1957 inhabitants (in 31/12/2013). The population density is 11 inhabitants per km2.