This section is from the book "Scientific American Reference Book. A Manual for the Office, Household and Shop", by Albert A. Hopkins, A. Russell Bond. Also available from Amazon: Scientific American Reference Book.
The following table, published by the United States Census Office, shows the gross area and population of the United States at each of the decennial censuses from 1790 to 1900, exclusive of all noncontiguous territory.
Year. | Area. | Year. | Area. | Population. | |
Square miles. | Square miles. | ||||
1790.......... | 827,844 | 3,929,214 | 1850.......... | 2,980,959 | 23,191,876 |
1800.......... | 827,844 | 5,308,483 | 1860.......... | 3,025,600 | 31,443,321 |
1810.......... | 1,999,775 | 7,239,881 | 1870.......... | 3,025,600 | 38,558,371 |
1820.......... | 2,059,043 | 9,633,822 | 1880.......... | 3,025,600 | 50,155,783 |
1830.......... | 2,059,043 | 12,866,020 | 1890.......... | 3,025,600 | 62,622,250 |
1840........... | 2,059,043 | 17,069,453 | 1900.......... | 3,025,600 | 75,994,575 |
 
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