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China Summary

Population 2000 (NSO-Based Estimate '000) 1,182,823   Population 2000 (UN '000) 1,275,133
Area (km2) 9,198,103   Avg. Input Resolution (km) 62
Number of Administrative Units 2,370   Population Per Administrative Unit ('000) 523
Number of Urban Extents 6,769   Number of Settlement Points 4,707

China Details

Continent Asia
Country Name China
Administrative Classifications
Level Used 3.0
Leve1 Type Province
Level2 Type Prefecture
Level3 Type County
Number of Units 2,370
Population Per Unit ('000) (2000, estimate) 523
National Population Estimates
Last Year of Reference 2000
NSO-Based Estimated Population, 1990 ('000) 1,131,925
NSO-Based Estimated Population, 1995 ('000) 1,131,925
NSO-Based Estimated Population, 2000 ('000) 1,182,823
UN Population, 1990 ('000) 1,155,305
UN Population, 1995 ('000) 1,219,349
UN Population, 2000 ('000) 1,275,133
National Spatial Estimates
Area (km2) 9,198,103
Average Input Resolution (km) 62
Settlement Points
Number of Settlement Points 4,707
Largest Settlement, by Population (2000, estimate) 13,459,634
Smallest Settlement, by Population (2000, estimate) 1,215
Mean Settlement, by Population (2000, estimate) 77,655
Urban Areal Extents
Number of Urban Extents 6,769
Largest Urban Extent (km2) 8,973
Smallest Urban Extent (km2) 0
Mean Urban Extent (km2) 56
Total for All Urban Extent (km2) 380,588
Largest Urban Extent (population, 2000) 29,462,030
Smallest Urban Extent (population, 2000) 1,002
Mean Urban Extent (population, 2000) 93,337
Total for All Urban Extent (population, 2000) 631,800,938
% Total Land Area in Urban Extents (km2) 4%
% Total Population in Urban Extents (2000, estimate) 50%
% Total Population that is Urban (2001, UN World Urbanization Prospects) 37%
Urban Areal Extents, by Source
Nighttime Lights Data 3,414
Regression-estimated Extents 4,657
Digital Chart of the World 0
Other 0
Administrative Population Source Data:
China 2000 County Population Census (CD-ROM). All China Marketing Research Co., LTD.
Administrative Boundary Source Data:
China 2000 County Population Census (CD-ROM). All China Marketing Research Co., LTD.
Settlement Point Population Source Data:
Settlement Point Coordinate Source Data:
DCW, Getty, NIMA, World Gazetteer
Urban Criteria for Settlements (UN):
Up to 1982: total population of cities and towns. Cities had to have a population of at least 100,000 or command special administrative, strategic, or economic importance to qualify as cit-ies. Towns were either settlements with more than 3,000 inhabitants of whom more than 70 per cent were registered as non-agricultural or settlements with a population ranging from 2,500 to 3,000 of whom more than 85 per cent were registered as non-agricultural. For the 1990 census: (1) all residents of urban districts in provincial and prefectural-level cities; (2) resident population of "streets" (jiadao) in county-level cities; (3) population of all residents'' committees in towns. For 1996 and 2000: Not available.
Administrative Population Edits and Notes:
Population data were extrapolated to target years using a county (administrative level 3) growth rate calculated between the years 1990 and 2000. A 5% rate cap was applied to select units. The 2000 population data was missing for the administrative 3 level unit of Mangyadachaidan. A population growth rate was calculated using 1990 and 1995 Mangyadachaida population estimates. The 1995 data was then extrapolated to target years.
Administrative Spatial Edits and Notes:
Taiwan was removed from the China shapefile. 1990 and 1995 population estimates were added to GPW3 units from GPW2 as follows: 1) GPW2 polygons projected to match GPW3 coordinate system with slight adjustment in false northing to compensate for misalignment 2) Converted projected GPW2 polygons to centroids 3) Visually-inspected centroids to ensure placement within appropriate GPW3 polygon (verified by comparing to administrative unit names) and moved when necessary 4) Where disaggregation occurred, centroids were copied and pasted to corresponding empty polygons. 5) Performed spatial join in ArcMap to assign GPW2 attributes to the new polygons and assigned the sum of each population attribute if there were multiple centroids within each polygon 6) Inspected data to ensure no data loss 7) Data were converted to lat/long coordinates.