Addresses for County Courthouse and IRAD:

Established:		March 1, 1839 (Laws, 1839, p. 199)
Origin of the name of the county:
	Named for DeWitt Clinton, a distinguished lawyer, financier and statesman, Mayor of the city and Governor of the State of New York, United States Senator and chief promoter of the Erie Canal.
Present area, or parts of it, formerly included in:
	1827–1839	McLean
	1831–1839	Macon
	1827–1831	Tazewell
	1827–1831	Shelby
	1821–1827	Fayette
	1819–1821	Clark
	1816–1819	Crawford
	1815–1816	Edwards
	1812–1815	Madison
	1801–1812	St. Clair
	1790–1801	Knox, Northwest Territory
County Seat:
	1839–	Clinton
History of county governing board:
	1839–1849	County Commissioners’ Court
	1849–1859	County Court
	1859–	County Board of Supervisors
Township Government
	Adopted:	November 2, 1858
Township Names:
	Barnett
	Clintonia	Name changed from Clinton on June 7, 1859.
	Creek
	DeWitt	Name changed from Marion on June 7, 1859.
	Harp
	Nixon
	Rutledge	Name changed from Douglas on June 7, 1859.
	Santa Anna	Name changed from Mt. Pleasant on June 7, 1859.
	Texas
	Turnbridge
	Wapella
	Waynesville
	Wilson