Sierra Leone, officially the Republic of Sierra Leone, is a country in West Africa. It is bordered by Guinea in the north, Liberia in the southeast, and the Atlantic Ocean in the southwest. Sierra Leone covers a total area of 71,740 km2 (27,699 sq mi) and has a population estimated at 6,440,053. The country has a tropical climate, with a diverse environment ranging from savannah to rainforests. Freetown is the capital, seat of government, and largest city. Bo is the second largest city. Other major cities in the country with a population over 100,000 are Kenema, Koidu Town and Makeni. The country is home to Fourah Bay College, the oldest university in West Africa, established in 1827. Sierra Leone is home to the third largest natural harbours in the world, the Queen Elizabeth II Quay (also known as the QE II Quay and locally as the Deep Water Quay or Government Warf).
About 0.1% or less are Buddhist.