During the administrative restructuring of 1984, the municipality of Sidi Moussa was formed from the following localities: Although historically an agricultural area, starting from 1971, an industrial zone of 166 hectares was established around the prefabricated factory of the army DNC-ANP.

This area is dedicated to metal, mechanical, wood, and construction industries employed at its peak more than 10,000 people.

Sidi Moussa is a municipality situated over 43.27 square kilometers (5.347% of the total area).

This data underscores the demographic landscape and density within the municipality, reflecting its significance within the region.

The commune was heavily struck by the Algerian Civil War: In 1993 and 1994 death squads conducted killings, in January 1997 there were further murders and in August 1997 the Rais massacre took place.