Saint-Louis or Saint Louis, is the capital of Senegal's Saint-Louis Region. Located in the northwest of Senegal, near the mouth of the Senegal River, and 320 kilometres (200 mi) north of Senegal's capital city Dakar. It had a population of 254,171 in 2023. Saint-Louis was the capital of the French colony of Senegal from 1673 until 1902 and French West Africa from 1895 until 1902, when the capital was moved to Dakar. From 1920 to 1957, it also served as the capital of the neighboring colony of Mauritania.