Saint-Louis
Department
Location in the Saint-Louis Region
Country	Senegal
Region	Saint-Louis Region
Capital	Saint-Louis
Area
• Total	879 km2 (339 sq mi)
Population  (2023 census)
• Total	387,513
• Density	440/km2 (1,100/sq mi)
Time zone	UTC+0 (GMT)

Saint-Louis Department is one of the 45 departments of Senegal, located in the Saint-Louis Region.

There are two communes in the department; Saint-Louis and Mpal

There is a single arrondissement, Rao, which comprises the rural districts (Communautés rurales) of:

• Fass Ngom
• Gandiole
• Gandon

In 2023, the population was counted at 387,513.

Historic Sites

Saint-Louis town

• Island of Saint-Louis
• Faidherbe Bridge
• Ex-hydrobase and Stele at the statue of Jean Mermoz
• Fishermen's Cemetery, Langue de Barbarie
• Church and grotto of Notre-Dame de Lourdes, Sor Quarter, Saint-Louis
• Remains of the first brickworks of Africa - Bopp-ou-Thior Island (2 km from Saint-Louis)
• Keur Cluny : Old orphanage of the Soeurs de Saint-Joseph de Cluny, Ndar Toute, Saint-Louis
• Monument to Old Soldiers - Place Pointe à Pitre, Guet-Ndar
• Marmyale Catholic cemetery, Sor Quarter, Saint-Louis
• School of the Sons of the Chief and Spokesmen, Ecole Khayar Mbengue, Sor Quarter
• Railway Station
• Ancien Temple Protestant et Asile des esclaves, Pont de Khor Saint-Louis

Arrondissement de Rao

• Tumuli of Rao (Nguiguéla, Mboy-u-Gar, Menguègne)
• Tower of Ndialakhar
• Ruins of the Fort of Laybar, near Saint-Louis
• The historic site of the Village of Nder
• Ruins of the Post Ofiice of the bar at Mouit
• The prehistoric site of the Marigot of Khant