Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Its land area is 71,740 km². It has a tropical climate and environments ranging from savannas to rainforests. As of the 2015 census, Sierra Leone had a population of 7,092,113. Freetown …Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Its land area is 71,740 km². It has a tropical climate and environments ranging from savannas to rainforests. As of the 2015 census, Sierra Leone had a population of 7,092,113. Freetown is both its capital and its largest city. The country is divided into five administrative regions, which are further subdivided into 16 districts.