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Nigeria Summary

Population 2000 (NSO-Based Estimate '000) 124,279   Population 2000 (UN '000) 113,862
Area (km2) 904,235   Avg. Input Resolution (km) 41
Number of Administrative Units 538   Population Per Administrative Unit ('000) 231
Number of Urban Extents 167   Number of Settlement Points 138

Nigeria Details

Continent Africa
Country Name Nigeria
Administrative Classifications
Level Used 2.0
Leve1 Type State
Level2 Type Local Government Unit
Number of Units 538
Population Per Unit ('000) (2000, estimate) 231
National Population Estimates
Last Year of Reference 1991
NSO-Based Estimated Population, 1990 ('000) 93,195
NSO-Based Estimated Population, 1995 ('000) 107,643
NSO-Based Estimated Population, 2000 ('000) 124,279
UN Population, 1990 ('000) 85,953
UN Population, 1995 ('000) 99,278
UN Population, 2000 ('000) 113,862
National Spatial Estimates
Area (km2) 904,235
Average Input Resolution (km) 41
Settlement Points
Number of Settlement Points 138
Largest Settlement, by Population (2000, estimate) 8,035,691
Smallest Settlement, by Population (2000, estimate) 61,096
Mean Settlement, by Population (2000, estimate) 313,364
Urban Areal Extents
Number of Urban Extents 167
Largest Urban Extent (km2) 1,362
Smallest Urban Extent (km2) 1
Mean Urban Extent (km2) 104
Total for All Urban Extent (km2) 17,298
Largest Urban Extent (population, 2000) 8,070,166
Smallest Urban Extent (population, 2000) 1,036
Mean Urban Extent (population, 2000) 229,858
Total for All Urban Extent (population, 2000) 38,386,313
% Total Land Area in Urban Extents (km2) 2%
% Total Population in Urban Extents (2000, estimate) 33%
% Total Population that is Urban (2001, UN World Urbanization Prospects) 45%
Urban Areal Extents, by Source
Nighttime Lights Data 183
Regression-estimated Extents 47
Digital Chart of the World 1
Other 0
Administrative Population Source Data:
The population figures for 1991 were based on estimates produced by Benoit Ninnin for the OECD/Club du Sahel West Africa Long Term Perspective Study (WALTPS) for 1960-90. He used these sources for 1990 population estimates: Federal Bureau of Census Nigeria (1991): Census of population, population by sex by state and local government: Lagos, 1992; and Federal Office of Statistics, Lagos (1991):Provisional Population Figures by Local Government Areas.
Administrative Boundary Source Data:
UNEP/GRID-WRI-NCGIA Africa Population Database:
Settlement Point Population Source Data:
City Population,; World Gazetteer,
Settlement Point Coordinate Source Data:
NIMA, Times Atlas of the World, 1, World Gazetteer
Urban Criteria for Settlements (UN):
Towns with 20,000 inhabitants or more whose occupations are not mainly agrarian.
Administrative Population Edits and Notes:
Population data were extrapolated to target years using growth rates derived from United Nations national level estimates and projections.
Administrative Spatial Edits and Notes: