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Peoria County
Contact InformationPeoria County Courthouse
324 Main St.
Peoria, IL 61602
309-672-6059 – County Clerk
309-672-6000 – Circuit Clerk
309-672-6090 – Recorder
IRAD Depository
University Library
Western Illinois University
1 University Circle
Macomb, IL 61455-1390
309-298-2716
Established
- January 13, 1825 (Laws, 1825, p. 85)
Origin of the name of the county
- Named for the Indian tribe called the Peorias, one of the tribes from the Illinois confederacy.
Present area, or parts of it, formerly included in
- 1823–1825 – Fulton
- 1821–1823 – Pike
- 1817–1821 – Bond
- 1812–1821 – Madison
- 1801–1812 – St. Clair
County Seats
- 1825–present – Peoria
History of county governing board
- 1825–1850 – County Commissioners’ Court
- 1850–present – County Board of Supervisors
Township Government
- Adopted – November 6, 1849
Township Names
- Akron
- Brimfield
- Chillicothe
- City of Peoria – Organized in December, 1907, from parts of the original township of Peoria and Richwoods.
- Elmwood
- Hallock
- Hollis
- Jubilee
- Kickapoo – Name changed from Orange (date unknown, probably 1850).
- Limestone
- Logan
- Medina – Name changed from Franklin (date unknown, probably 1850).
- Millbrook
- Princeville
- Radnor – Name changed from Benton to Fremont and then to Radnor (dates unknown, probably 1850).
- Richwoods – Part of Richwoods was given to Town of the City of Peoria when it was organized in 1907.
- Rosefield
- Timber
- Trivoli
- West Peoria – Designation given to that part of the original township of Peoria not given to the Town of the City of Peoria in 1907. (See City of Peoria above.)
Township Map
Pertinent Databases