United States Census 1840

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Additional information may be found on the United States Census Portal page.


1840 Census was taken beginning 1 June 1820, for eighteen months. The following information was recorded by the census taker:

                        Free white males under 5
                        Free Males 5-10
                        Free Males 10-15
                        Free Males 15-20
                        Free Males 20-30
                        Free Males 30-40
                        Free Males 40-50
                        Free Males 50-60
                        Free Males 60-70
                        Free Males 70-80
                        Free Males 80-90
                        Free Males 90-100
                        Free Males over 100
                        Free Females same as males
                        Slaves/free colored persons in age categories
                        Deaf, dumb, blind & aliens
                        Age of Rev. War pensioners
                        Mining; agriculture; commerce; manufacturing & trade; navigation of the ocean; 
                                    navigation of canals, lakes & rivers; learned professions and engineers; 
                                    number in school; number in family over 21 who could read & write; 
                                    number insane
1790-1840 Info:http://www.census.gov/prod/2000pubs/cff-2.pdf 


The 1840 census can be used to:1

                        Identify locality
                        Distinguish target family from others of same name
                        Help determine family size
                        Locate possible relatives with same name
                        Identify neighbors
                        Identify slaveholders
                        Identify name variations
                        Free men of color listed as head of household
                        Slaves in age group by name of owner
                        Naturalization column may indicate length of residency in U.S. to find papers
                        Identify Pensioners leading to Rev. War information
                        Identify occupation
                        Identify education level
                        Identify insane leading to institution/guardianship records

 1790-1840 Searching Tips: http://www.archives.gov/genealogy/census/1790-1840.html

Unique Features and Problems

1.  Asked the age of Revolutionary war pensioners
2.  Expanded occupational options
3.  Lists the number of those in school
4.  Lists the number of those over 21 who can read and write
5.  Lists those who are insane 

 States Covered and Missing

  • Alabama
  • Arkansas
  • Connecticut
  • Delaware
  • District of Columbia
  • Georgia
  • Illinois 
  • Indiana
  • Kentucky
  • Louisiana
  • Maine
  • Maryland
  • Massachusetts
  • Michigan
  • Mississippi
  • Missouri
  • New Hampshire
  • New Jersey
  • New York
  • North Carolina
  • Ohio
  • Pennsylvania
  • Rhode Island
  • South Carolina
  • Tennessee
  • Virginia
  • Vermont

No states missing.


  • Florida
  • Iowa
  • Oregon (also a part of Britain)
  • Wisconsin

Web Sites

1790-1840 Info: http://www.census.gov/prod/2000pubs/cff-2.pdf

1790-1840 Search Tips: http://www.archives.gov/genealogy/census/1790-1840.html

 Biographic Citations

1. Szucs, Loretto Dennis and Sandra Hargreaves Luebking. The Source: A Guide book to American Genealogy. 3rd ed. (Provo, UT: Ancestry, 2006.)