Illinois, State Census, 1855

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

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Illinois, State Census, 1855

What is in This Collection?

The collection contains a name index to the Illinois state census of 1855. The census was compiled to obtain a count of the population to determine how many representatives the state would send to Congress. The state constitution of 1848 accepted the federal decennial censuses as the basis for apportionment of representatives, but also provided for state censuses at mid-decades. As a result state censuses were conducted in 1855 and 1865. The state constitution of 1870 ended the practice of state censuses. Census returns for 1855 exist for 90 of the 100 counties. The information was handwritten on pre-printed sheets. Schedules do not exist for the following counties:

  • Carroll
  • Champaign
  • Franklin
  • Gallatin
  • Henry
  • Jefferson
  • Jo Daviess
  • Lake
  • Stark
  • Will
  • Woodford

Jo Daviess County returns for the 1855 are found in the Ancestry "Illinois, State Census Collection, 1825-1865". Microfilm copies of original records are available at the FamilySearch Library and at FamilySearch centers.

Additional records and/or images may be added to this collection in the future.

To Browse This Collection

You can browse through images in this collection using the waypoints on the Collection Browse Page for Illinois State Census, 1855.

What Can These Records Tell Me?

The following information may be found in these records:

  • Name of head of family
  • Free white males by decennial age ranges; under 10, 10 to 20, 20 to 30, 30 to 40, etc
  • Free white females by decennial age ranges; under 10, 10 to 20, 20 to 30, 30 to 40, etc

  • Numbers of male and female Negros and mulattoes
  • Total number in household
  • Number of males eligible for duty in the militia

  • Value of products of coal mines
  • Value of live stock
  • Number of pounds of wool
  • Manufactories by type (for example: mill, tin shop, saddle shop) and their value

  • Number of colleges
  • Number of students
  • Number of common schools
  • Number of students
  • Remarks