Although its existence dates back to before the Roman period (Murustaga during the Phoenicians, then Cartennae during the Romans), Mostaganem does not present a sufficiently known history that from the eleventh century, when it was under the control of the Almoravids. The city of Mauristaga (today Mostaganem) was rebuilt after Islam (late 15th century) by Prince Hamid el Abd under the command of the brave Saint of the city Sidi Abdellah el Khattabi el Idrissi, Ouali of the Medjahers.
In 1962 Mostaganem was a thriving city in the Mediterranean, and it was not until after 1980 that the region saw its rebirth.
The Wilaya of Mostaganem, is distinguished by the wealth of its farmland and its coastline which gives it a true agricultural and tourist vocation.
The study conducted by the National Agency for the Development and Attractiveness of the Territories (ANAAT) has raised the Wilaya of Mostaganem in terms of territorial resources, the importance of its seafront, its proximity to Oran and the petrochemical cluster of Arzew.
The study considered Mostaganem as “the centre of the issues of planning and sustainable development”, particularly in terms of territorial programming of the North-West.