Dakar is located on the Cap-Vert Peninsula on the Atlantic coast and is the westernmost city on the African mainland. Its position, on the western edge of Africa, is an advantageous departure point for trans-Atlantic and European trade; this fact aided its growth into a major regional port.

According to December 31, 2005 official estimates, the city of Dakar proper has a population of 1,030,594, whereas the population of the Dakar metropolitan area is estimated at 2.45 million people.