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• 1818 Illinois Territory Census Records - New Horizons Genealogy

  1818 Illinois Territory Census Records, as found in the Collections of the State Historical Library, Volume XXIV, Statistical Series, Volume II.

• A Look At Cook (Wayback Machine)

  Census tools for Cook County Illinois, including Chicago City. Maps, enumeration district descriptions, ward boundaries & notes.

  • 1870 Census (Wayback Machine)

  • 1880 Census (Wayback Machine)

  • 1920 Census (Wayback Machine)

  • 1930 Census (Wayback Machine)

  • Census Research Tools (Wayback Machine)

• Ancestry.com - Illinois Census, 1810-90 $

  AIS indexes. Original source: Jackson, Ron V., Accelerated Indexing Systems, comp.. Illinois Census, 1810-90 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 1999. Original data: Compiled and digitized by Mr. Jackson and AIS from microfilmed schedules of the U.S. Federal Decennial Census, territorial/state censuses, and/or census substitutes.

• Ancestry.com - Illinois State Census Collection, 1825-1865 $

  Original source: Illinois State Census, 1825. Microfilm. Record Series 103.003, 1 roll. Illinois State Archives, Springfield, Illinois.; Illinois State Census, 1830. Microfilm. Record Series 103.004, 1 roll. Illinois State Archives, Springfield, Illinois.; Illinois State Census, 1835. Microfilm. Record Series 103.005, 1 roll. Illinois State Archives, Springfield, Illinois.; Illinois State Census, 1845. Microfilm. Record Series 103.007, 1 roll. Illinois State Archives, Springfield, Illinois.; Illinois State Census, 1855 Microfilm. Record Series 103.008, 13 rolls. Illinois State Archives, Springfield, Illinois.; Illinois State Census, 1865. Microfilm. Record Series 103.010, 18 rolls. Illinois State Archives, Springfield, Illinois.; Nonpopulation Census Schedules for Illinois, 1850

• FamilySearch - Illinois State Census, 1855 ^FREE

  Index and images of the Illinois state census taken in 1855.

• FamilySearch - Illinois State Census, 1865 ^FREE

  Name index and images of the Illinois state census taken on 3 July 1865. The following counties are missing: Gallatin, Mason, Monroe and part of Tazewell.

• Illinois State Census Records

• Jefferson Co. IL Census Records

  Jefferson County, Illinois.

• Montgomery County Illinois Federal Census

  Montgomery County Illinois Federal Census Records covering 1850 to 1930.