Banjul, Gambia
Banjul is the third-largest city and capital of the Gambia, the smallest nation on the African continent. The city sits on an island where the Gambia River meets the Atlantic Ocean and it is bordered by Senegal.
According to Mercer 2020 Cost of Living, the city ranks 204th globally making it the 6th least expensive city in the world and the 3rd in Africa.