1990 United States Census

The Twenty-first United States Census, conducted by the Census Bureau, determined the resident population of the United States to be 248,709,873, an increase of 9.8 percent over the 226,545,805 persons enumerated during the 1980 Census.[1]

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1790 United States Census
The United States Census of 1790 was the first Census conducted in the United States. It was conducted on August 2, 1790. It showed that 3,929,326[1] people were living in the United States of which 697,681 were slaves, and that the largest cities were New York City with 33,000 inhabitants; Philadelphia, with 28,000; Boston, with 18,000; Charleston, South Carolina, with 16,000; and Baltimore, with 13,000. Census records for Delaware, Georgia, New Jersey, and Virginia were lost sometime between 1790 and 1830.[2]
1810 United States Census
The United States Census of 1810 was the third Census conducted in the United States. It was conducted on August 6, 1810. It showed that 7,239,881 people were living in the United States of which 1,191,362 were slaves.
1820 United States Census
The United States Census of 1820 was the fourth Census conducted in the United States. It was conducted on August 7, 1820 The total population was determined to be 9,638,453 of which 1,538,022 were slaves. The center of population was about 120 miles (193 km) west-northwest of Washington in Hardy County, Virginia (now in West Virginia).
1830 United States Census
The United States Census of 1830 was the fifth Census conducted in the United States. It was conducted on June 1, 1830. It determined the population of the 24 states to be 12,866,020 of which 2,009,043 were slaves. The center of population was about 170 miles (274 km) west of Washington, D.C. in Grant County, Virginia.
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