World summary --- Sudan

Summary information

Names
ISO3-Code	SDN
Continent	Africa
Country Name	Sudan
Administrative
Admin Level Used	2
Level1 Type	State
Level2 Type	Muhafazat
Number of Units	85
Population Estimates
Ref. Year First	1983
Ref. Year Last	1993
Pop '90 (estimated) ('000)	23,904
Pop '95 (estimated) ('000)	27,875
Pop '90 (UN) ('000)	24,062
Pop '95 (UN) ('000)	26,617
Difference '90	0.7%
Difference '95	-4.7%
Spatial Estimates
Area (sq km)	2,505,810
Resolution (km)	172
PopPerUnit ('000)	313
Resources
Web Site 1	http://grid2.cr.usgs.gov

Data sources This database was initially produced for the UNEP/GRID-WRI-NCGIA Africa Population Database. See the GRID-Sioux Falls web site at http://grid2.cr.usgs.gov The 1980 and 1990 estimates produced for this database were used to produce the P95E estimate. Pop data sources: 1. Central Bureau of Statistics (1993), Population census of Sudan 1993, Census Office, Khartoum. Incomplete due to partial enumeration in Southern Sudan. Boundaries seemed to have changed somewhat between '83 and '93, but no map was available. 2. Population Studies Center (1983), Population of Sudan and its regions, Project Document 1, 1983 census: Total populations by region, province and district, University of Gezira jointly with Department of Statistics, Census Office. 3. Republic of Sudan (1961), First population census of Sudan 1955/56, Final report, Vol 1, Khartoum. 4. Nelson, H.D. (1982), Sudan - A country study, Area Handbook Series, Federal Research Division of the Library of Congress. 5. Ertur, O.S. and W.J. House (1994), Population and human resources development in the Sudan, Compiled in cooperation with UNFPA and ILO, Iowa State University Press, Ames. 4) and 5) list figures for 1973 by region. Boundaries changed significantly between the three censuses, so data had to be aggregated or split to match the available boundary data set. The boundaries match the 1983 census although some of the unit names are different in the coverage and the census publications. P90 is based on the intercensal 83-93 growth rate for the districts (third level units) where available. Else they are based on region level growth rates for the areas not enumerated. For these, only 1993 estimates were available. Since matching of the 1956 and 73 units was very difficult due to numerous boundary changes at the lower levels, P80 is based on regional level growth rates 73-83, and P60 and P70 are based on region level growth rates for 56-73.

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