Congo, Dem. Rep. is 33 times larger than Sierra Leone.
Area: 2,344,858 km2 World Factbook
Population: 77,433,744 (July 2014) World Factbook
The Democratic Republic of the Congo, sometimes referred to as DR Congo, DRC, Congo, Congo-Kinshasa, DROC, or RDC, is a country located in the African Great Lakes region of Central Africa. It is the second largest country in Africa by area and the eleventh largest in the world. Wikipedia
Area: 71,740 km2 World Factbook
Population: 5,743,725 (July 2014) World Factbook
Sierra Leone, officially the Republic of Sierra Leone, is a country in West Africa that is bordered by Guinea to the northeast, Liberia to the southeast, and the Atlantic Ocean to the southwest. Sierra Leone is a constitutional republic with a directly elected president and a unicameral legislature. Wikipedia