Area: 923,768 sq. km. (356,700 sq. mi.) about the size of
California, Nevada, and Arizona.
Cities: Capital--Abuja (pop. est. 100,000). Other cities--Lagos
(12 million), Ibadan (5 million), Kano (1 million), Enugu (500,000).
Terrain: Ranges from southern coastal swamps to tropical forests,
open woodlands, grasslands, and semidesert in the far north. The
highest regions are the Jos Plateau 1,200-2,000 meters above sea
level and the mountains along the border with Cameroon.
Climate: Annual rainfall ranges from 381 cm. along the coast to 64
cm. or less in the far north.
Nationality: Noun and adjective--Nigerian(s).
Population (2005 est.): 137 million.
Total fertility rate (avg. number of children per woman): 6.0.
Ethnic groups (250): Hausa-Fulani, Igbo, and Yoruba are the largest.
Religions: Muslim, Christian, indigenous African.
Languages: English (official), Hausa, Igbo, Yoruba, others.
Education: Attendance (secondary)--male 32%, female 27%.
Health: Life expectancy--56 years.
Type: Federal republic.
Independence: October 1, 1960.
Constitution: The 1979 constitution was suspended after 1983, the
May 3, 1989 constitution never implemented, and the 1999
constitution (based largely on the 1979 constitution) was
promulgated by decree on May 5, 1999. The 1999 constitution came
into force on May 29, 1999.
Subdivisions: 36 states plus Federal Capital Territory (Abuja);
states divided into a total of 774 local government areas.
Total government expenditure: $7 billion.
Defense: 10% of 2003 budget.
GDP (2004 est.): $72 billion.
Estimated real growth rate (2004): 6.1%.
Per capita GDP (2002 est.): $290.
Inflation (2004 est.): 14%.
Natural resources: Petroleum, natural gas, tin, columbite, iron ore,
coal, limestone, lead, zinc.
Agriculture: Products--cocoa, palm oil, yams, cassava,
sorghum, millet, corn, rice, livestock, groundnuts, cotton.
Industry: Types--textiles, cement, food products, footwear,
metal products, lumber, beer, detergents, car assembly.
Trade (2000): Exports--$21.4 billion: petroleum (98.%),