Congo, Dem. Rep. is 2.5 times larger than Nigeria.
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: 923,768 km2 World Factbook
Population: 177,155,754 (July 2014) World Factbook
Nigeria, officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. Wikipedia