The Reader's Companion to American History
Population of the United States, 1790-1990
Census Year	Population	% Changea
1790	3,929,214	-
1800	5,308,483	35.1
1810	7,239,881	36.4
1820	9,638,453	33.1
1830	12,866,020	33.5
1840	17,069,453	32.7
1850	23,191,876	35.9
1860	31,443,321	35.6
1870	39,818,449	26.6
1880	50,155,783	26.0
1890	62,947,714	25.5
1900	75,994,575	20.7
1910	91,972,266	21.0
1920	105,710,620	14.9
1930	122,775,046	16.1
1940	131,669,275	7.2
1950	151,325,798	14.5
1960	179,323,175	18.5
1970	203,211,926	13.3
1980	226,504,825	11.5
1990	249,632,692b	10.21

a. % change from last census.

b. Preliminary figure.