Former name of the city: Thiersville.
Current name of the city: Ghriss according manuscripts Vital 1870.
Before 1976, it has depended riding mascara (ex) daïra Mostaganem wilaya.
It extends over an area of 116 km2 and has a population of 32,281 inhabitants (in 31/12/2013). The population density is 278 inhabitants per km2.
Rural Population: 8393 Hbs
Urban population: 2,371 HBs
Location: it is located south of the main town of the province of mascara.