This map shows United States counties reporting a slave population on the 1860 US Federal census. Click here for a map showing the free colored population in 1860.
Data taken from two reports published by Joseph C. G. Kennedy (1813-1887), Preliminary Report on the Eighth Census, 1860, Washington: Government Printing Office, 1862 and Population of the United States in 1860, Washington: Government Printing Office, 1864.
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