| Population | 68,692,542 (2009 estimate) |
| Population growth | |
| Population growth rate | 3.21 percent (2009 estimate) |
| Projected population in 2025 | 109,674,758 (2009 estimate) |
| Projected population in 2050 | 189,310,849 (2009 estimate) |
| Population density | 30 persons per sq km (2009 estimate) |
| 78 persons per sq mi (2009 estimate) | |
| Urban/rural distribution | |
| Share urban | 33 percent (2005 estimate) |
| Share rural | 67 percent (2005 estimate) |
| Largest cities, with population | |
| Kinshasa | 5,277,000 (2003 estimate) |
| Lubumbashi | 1,140,000 (2007 estimate) |
| Kisangani | 417,517 (1994 estimate) |
| Ethnic groups | |
| There are more than 200 African ethnic groups. The largest culture groups are the Lunda, Luba, Kuba, Bakongo (Kongo), Mongo, Mangbetu, and Azande. Other Bantu, Nilo-Saharan, African-Asian, European, and Asian groups also exist. | |
| Languages | |
| French (official), Lingala, Kikongo, Tshiluba, Swahili, other indigenous languages | |
| Religious affiliations | |
| Christian | 95 percent |
| Roman Catholic | 52 percent |
| Protestant | 20 percent |
| Other Christian | 23 percent |
| Muslim | 2 percent |
| Indigenous beliefs | 2 percent |
| Other | 1 percent |
| Health and Education | |
| Life expectancy | |
| Total | 54.4 years (2009 estimate) |
| Female | 56.2 years (2009 estimate) |
| Male | 52.6 years (2009 estimate) |
| Infant mortality rate | 81 deaths per 1,000 live births (2009 estimate) |
| Literacy rate | |
| Total | 89.8 percent (2005 estimate) |
| Female | 84.9 percent (2005 estimate) |
| Male | 95 percent (2005 estimate) |
| Economy | |
| Gross domestic product (GDP, in U.S.$) | $9 billion (2007) |
| GDP per capita (U.S.$) | $143.50 (2007) |
| GDP by economic sector | |
| Agriculture, forestry, fishing | 42.5 percent (2007) |
| Industry | 28.4 percent (2007) |
| Services | 29.1 percent (2007) |
| Monetary unit | |
| 1 Congolese franc, consisting of 100 centimes | |
| Major trade partners for exports | |
| Belgium, United States, Zimbabwe, Finland, and Italy | |
| Major trade partners for imports | |
| South Africa, Belgium, Nigeria, France, and Kenya | |