Illinois Census

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Online Federal Censuses[edit | edit source]

Population Schedules[edit | edit source]

Starting in 1790, federal population schedules were taken every 10 years in the United States. Click here for more information about federal census records.

Illinois became the twenty-first state admitted to the United States on December 3, 1818. It will not appear on any federal censuses before that time.

United States Federal Censuses with Online Links[edit | edit source]
1820 1830 1840 1850
1860 1870 1880 1890
1900 1910 1920 1930

Non-Population Schedules for Illinois[edit | edit source]

Federal non-population schedules included such things mortality schedules, agriculture schedules, slave schedules, and manufacturing schedules.

Year Type of Census Links
1880 Defective at Ancestry
1880 Mortality at Ancestry
1880 Manufacturing at Ancestry
1880 Agriculture at Ancestry
1870 Social Statistics at Ancestry
1870 Mortality at Ancestry
1870 Industry at Ancestry
1870 Agriculture at Ancestry
1860 Mortality at Ancestry
1860 Industry at Ancestry
1860 Agriculture at Ancestry
1860 Mortality at Ancestry
1860 Industry at Ancestry
1860 Agriculture at Ancestry
1850 Mortality at Ancestry
1850 Agriculture at Ancestry
1840 Pensioners at Ancestry

Existing and Lost Censuses[edit | edit source]

Online State and Territorial Censuses[edit | edit source]

State censuses are census records that were taken at the state-level rather than at the federal. Often, but not always, a state took their census in ten year increments 5 years from when the Federal Census was taken, such as 1885. State censuses can even serve as substitutes for missing federal censuses. For more information on state censuses, visit United States Census Bureau.

Territorial censuses were taken by the federal government to count the population in federal territories. The government needed to count the population in the territory to see if it could qualify for statehood. For more information on territorial censuses, visit the US Territorial Census page.

Year Type of Census Links
1865 State, head of household at FamilySearch

at Ancestry

1855 State, head of household at FamilySearch

at Ancestry

1845 State (select counties) at Ancestry
1840 State (select counties) contact Illinois State Archives
1835 State (select counties), head of household at Ancestry
1830 State (Morgan County), head of household at Ancestry
1825 State (Edwards, Fulton and Randolph Counties), head of household at Ancestry
1820 State (all but Edwards County), head of household contact Illinois State Archives
1818 Territorial (used to determine if Illinois had sufficient population to

become a state; sometimes called the 1818 Illinois Statehood Census)

1810 Territorial

Other Census Images[edit | edit source]

Why Use the Census?[edit | edit source]

State census records can be one of the easiest ways to locate where an ancestor's family lived and when they lived there. Information varies based on year and location, but information that may be included in a census can include:

  • Name of each person in the family at the time the census was taken
  • Street or Avenue, or number Rural Free Delivery
  • Sex
  • Age
  • Color
  • Nativity
  • Place of birth of this person
  • Place of birth of Father of this person
  • Place of birth of Mother of this person
  • Period of Residence
  • How long a resident of this State (years and months)
  • How long a resident of this enumeration district (years and months)
  • Regular occupation
  • Military service