U.S. Census 1820
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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).
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