stern Africa, bordering the Gulf of Guinea, between Benin and
Cameroon

Geographic coordinates:
10 00 N, 8 00 E

Map references:
Africa

Area:
total: 923,768 sq km
land: 910,768 sq km
water: 13,000 sq km

Area - comparative:
slightly more than twice the size of California

Land boundaries:
total: 4,047 km
border countries: Benin 773 km, Cameroon 1,690 km, Chad 87 km, Niger
1,497 km

Coastline:
853 km

Maritime claims:
territorial sea: 12 nm
exclusive economic zone: 200 nm
continental shelf: 200-m depth or to the depth of exploitation

Climate:
varies; equatorial in south, tropical in center, arid in north

Terrain:
southern lowlands merge into central hills and plateaus; mountains
in southeast, plains in north

Elevation extremes:
lowest point: Atlantic Ocean 0 m
highest point: Chappal Waddi 2,419 m

Natural resources:
natural gas, petroleum, tin, iron ore, coal, limestone, niobium,
lead, zinc, arable land

Land use:
arable land: 33.02%
permanent crops: 3.14%
other: 63.84% (2005)

Irrigated land:
2,820 sq km (2003)

Natural hazards:
periodic droughts; flooding

Environment - current issues:
soil degradation; rapid deforestation; urban air and water
pollution; desertification; oil pollution - water, air, and soil;
has suffered serious damage from oil spills; loss of arable land;
rapid urbanization

Environment - international agreements:
party to: Biodiversity, Climate Change, Climate Change-Kyoto
Protocol, Desertification, Endangered Species, Hazardous Wastes, Law
of the Sea, Marine Dumping, Marine Life Conservation, Ozone Layer
Protection, Wetlands
signed, but not ratified: none of the selected agreements

Geography - note:
the Niger enters the country in the northwest and flows southward
through tropical rain forests and swamps to its delta in the Gulf of
Guinea

People Nigeria

Population:
131,859,731
note: estimates for this country explicitly take into account the
effects of excess mortality due to AIDS; this can result in lower
life expectancy, higher infant mortality and death rates, lower
population and growth rates, and changes in the distribution of
population by age and sex than would otherwise be expected (July
2006 est.)

Age structure:
0-14 years: 42.3% (male 28,089,017/female 27,665,212)
15-64 years: 54.6% (male 36,644,885/female 35,405,915)
65 years and over