Addresses for County Courthouse and IRAD:

Established:			December 25, 1830 (Laws, 1830, p. 31)
Origin of the name of the county:
	Named for John McLean, a pioneer lawyer, Territorial judge, first Representative in Congress from Illinois (1818), and United States Senator (1824–1825).
Present area, or parts of it, formerly included in:
	Eastern Part:
		1827–1830	Shelby
		1821–1827	Fayette
		1819–1821	Clark
		1816–1819	Crawford
		1815–1816	Edwards
	Western Part:
		1827–1831	Tazewell
		1825–1827	Peoria
		1821–1825	Sangamon
		1817–1821	Bond
	1812–1817		Madison
	1801–1812		St. Clair
	1790–1801		Knox, Northwest Territory
County Seat:
	1831–		Bloomington—Named Blooming Grove until 1831.
	Old Historic Courthouse
History of county governing board:
	1830–1849		County Commissioners’ Court
	1849–1858		County Court
	1858–		County Board of Supervisors
Documented Record Losses
	June 19, 1900—Fire			Some records lost or damaged.
Township Government
	Adopted:		November 3, 1857
Township Names:
	Allin		Name changed from Mosquito Grove on March 4, 1867.
	Anchor		Formed from Cropsey (date unknown, before 1920).
	Arrowsmith		Name changed from Pleasant on May 17, 1858.
	Bellflower		Name changed from Prairie on May 17, 1858.
	Bloomington
	Blue Mound
	Cheney’s Grove
	Chenoa
	City of Bloomington		Formed from Bloomington (date unknown, after 1921).
	Cropsey
	Dale
	Danvers
	Dawson		Originally named Lee; changed to Padua on May 17, 1858; then changed to Dawson (date unknown, after 1920).
	Downs		Name changed from Savanna on May 17, 1858.
	Dry Grove
	Empire		Name changed from Le Roy on May 17, 1858.
	Funk’s Grove
	Gridley
	Hudson
	Lawndale
	Lexington
	Martin
	Money Creek
	Mount Hope
	Normal
	Old Town
	Randolph
	Towanda
	West		Name changed from Kickapoo on May 17, 1858.
	White Oak
	Yates		Formed as Union from Chenoa on June 5, 1862; name changed from Union to Yates (date unknown, before 1920).