The USGenWeb Census Project
The USGenWeb Census Project
Intro to Federal Census Research

1840 Census Facts
Series: M704 Rolls: 1 - 580.

  • Sixth U.S. decennial population census.
  • U.S. population: 17.1 million (14.6 million free, 2.5 million slave)
  • Census conducted by U.S. marshals under the direction of the Secretary of State.
  • Census day: 1 June 1840.
  • Mandated copies: Two sets, one sent to the federal district court,
    the other to the Secretary of State.
Information Provided on 1840 Census:
  • Name of family head
  • age
  • sex
  • race
  • slaves
  • number of deaf and dumb
  • number of blind
  • number of insane and idiotic and whether in public or private charge
  • number of persons in each family employed in each of six classes of industry and one of occupation
  • literacy
  • pensioners for Revolutionary or military service.

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