World summary --- Chad

Summary information

Names
ISO3-Code	TCD
Continent	Africa
Country Name	Chad
Administrative
Admin Level Used	2
Level1 Type	Prefecture
Level2 Type	Sous-Prefecture
Number of Units	14
Population Estimates
Ref. Year First	1979
Ref. Year Last	1992
Pop '90 (estimated) ('000)	5,454
Pop '95 (estimated) ('000)	6,043
Pop '90 (UN) ('000)	5,746
Pop '95 (UN) ('000)	6,707
Difference '90	5.1%
Difference '95	9.9%
Spatial Estimates
Area (sq km)	1,284,000
Resolution (km)	303
PopPerUnit ('000)	479
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 population figures for 1960-90 are, in turn, based on the OECD/Club du Sahel West Africa Long Term Perspective Study (WALTPS), and were estimated by Benoit Ninnin. The 1980 and 1990 estimates produced for this database were used to produce the P95E estimate. WALTPS pop estimates based on: 1. Etude d'une Image - Long Terme de l'Afrique. 2. CEA (NU): Seminaire national sur la population et le developpement au Tchad, Decembre 1984. 3. INSEE-Service Cooperation: Enquete demographique au Tchad, 1964: Resultats definitifs: Tome 1, Analyse des resultats: Paris, Juin 1966. 4. Nassour G. Ouaidou: Evolution des effectifs de la population des pays africains: Tchad. Groupe de demographie africaine: Paris, Novembre 1979. 5. Lopez-Escartin N.: Donnees de base sur la population, Tchad: CEPED, No. 5, Paris, Aout 1991. Boundary data source: USGS/EDC USAID/FEWS

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