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Census Research Guide: 1820

About the 1820 Census

Census Bureau's "By Decade" website

Includes a variety of publications, questionnaires, datasets, and more


  • 4th decennial census
  • US population: 9,638,453
  • First census to ask about occupation/employment

Questions asked (see questionnaire)

Name of head of family; age; sex; race; foreigners not naturalized; slaves; industry (agriculture, commerce, and manufactures).

Map coverage of the 1820 census


Find all 1820 census publications in the Library.

Key publications:

Print available in the Library

 Online access

Census for 1820
[C 3.14:820/1 and C 3.14:820/1/reprint and HA201 1820]

 Census Bureau


Digest of accounts of manufacturing establishments in the United States, and of their manufactures
[C 3.14:820/2/reprint]