Addresses for County Courthouse and IRAD:

Established:		January 31, 1827 (Laws, 1827, p. 113)
Origin of the name of the county:
	Named for Lyttleton W. Tazewell, an eminent lawyer, Governor, Representative in Congress, and United States Senator from Virginia.
Present area, or parts of it, formerly included in:
	1825–1827	Peoria
	1821–1825	Sangamon
	1817–1821	Bond
	1812–1821	Madison
	1790–1812	St. Clair
	1790–1801	Knox, Northwest Territory
County Seats:
	1827–1831	Mackinaw
	1831–1836	Pekin
	1836–1849	Tremont
	1850–	Pekin
History of county governing board:
	1827–1850	County Commissioners’ Court
	1850–	County Board of Supervisors
Township Government
	Adopted:	November 6, 1849
Township Names:
	Boynton	Formed as Boyington in November, 1854; name changed to Boynton (date unknown).
	Cincinnati
	Deer Creek
	Delavan
	Dillon
	Elm Grove
	Fon-du-lac
	Groveland
	Hittle	Name changed from Union to Waterford on May 20, 1850; name changed from Waterford to Armington in August, 1850; name changed from Armington to Hittle on November 11, 1850.
	Hopedale	Name changed from Highland on May 20, 1850.
	Little Mackinaw
	Mackinaw
	Malone	Formed from Delavan in November, 1854.
	Morton
	Pekin
	Sand Prairie	Name changed from Jefferson on May 20, 1850.
	Spring Lake
	Tremont
	Washington