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World Population

Historical Estimates of World Population

(Population in millions. When lower and upper estimates are the same they are shown under "Lower.")

Year Summary Biraben Durand Haub McEvedy
and Jones
Thomlinson UN, 1973 UN, 1999 USCB
Lower Upper Lower Upper Lower Upper Lower Upper
10000 BC 1 10         4 1 10        
8000 BC 5         5              
6500 BC 5 10               5 10    
5000 BC 5 20         5 5 20        
4000 BC 7           7            
3000 BC 14           14            
2000 BC 27           27            
1000 BC 50           50            
500 BC 100           100            
400 BC 162   162                    
200 BC 150 231 231       150            
1 AD 170 400 255 270 330 300 170 200   200 400 300  
200 AD 190 256 256       190            
400 AD 190 206 206       190            
500 AD 190 206 206       190            
600 AD 200 206 206       200            
700 AD 207 210 207       210            
800 AD 220 224 224       220            
900 AD 226 240 226       240            
1000 AD 254 345 254 275 345   265         310  
1100 AD 301 320 301       320            
1200 AD 360 450 400     450 360            
1250 AD 400 416 416                 400  
1300 AD 360 432 432       360 400          
1340 AD 443   443                    
1400 AD 350 374 374       350            
1500 AD 425 540 460 440 540   425         500  
1600 AD 545 579 579       545            
1650 AD 470 545       500 545 500   470 545    
1700 AD 600 679 679       610 600          
1750 AD 629 961 770 735 805 795 720 700   629 961 790  
1800 AD 813 1,125 954       900 900   813 1,125 980  
1850 AD 1,128 1,402 1,241     1,265 1,200 1,200   1,128 1,402 1,260  
1900 AD 1,550 1,762 1,633 1,650 1,710 1,656 1,625 1,600   1,550 1,762 1,650  
1910 AD 1,750                     1,750  
1920 AD 1,860                     1,860  
1930 AD 2,070                     2,070  
1940 AD 2,300                     2,300  
1950 AD 2,400 2,558 2,527     2,516 2,500 2,400   2,486   2,520 2,558

Sources:

Biraben, Jean-Noel, 1980, An Essay Concerning Mankind's Evolution,
Population, Selected Papers, December, table 2.

Durand, John D., 1974, "Historical Estimates of World Population: An Evaluation,"
University of Pennsylvania, Population Center,
Analytical and Technical Reports, Number 10, table 2.

Haub, Carl, 1995, "How Many People Have Ever Lived on Earth?"
Population Today, February, p. 5.

McEvedy, Colin and Richard Jones, 1978, "Atlas of World Population History,"
Facts on File, New York, pp. 342-351.

Thomlinson, Ralph, 1975, "Demographic Problems, Controversy Over Population Control,"
Second Edition, Table 1.

United Nations (UN), 1973, The Determinants and Consequences of
Population Trends, Population Studies, No. 50., p.10.

United Nations, 1999, The World at Six BillionOff Site, Table 1, "World Population From"
Year 0 to Stabilization, p. 5,

U.S. Census Bureau (USCB), 2013, Total Midyear Population for the World: 1950-2050,

Data updated December 2013, http://www.census.gov/population/international/data/idb/informationGateway.php

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Source: U.S. Census Bureau | International Programs | International Data Base   Revised:December 19, 2013   Version: Data:12.0625 Code:12.0321