Tazewell County, Illinois

Tazewell County (/tæzwɛl/) is a county in the U.S. state of Illinois. In the 2020 census, 131,343 people lived there.^[1] Its county seat and largest city is Pekin.

Tazewell County, Illinois Media

Tazewell from the time of its creation to 1829, including a large tract of unorganized territory temporarily attached to it, whose precise border was not defined.
Tazewell County between 1829 and 1830: the creation of Mason County established a southern border for Tazewell's additional territory.
Tazewell County between 1830 and 1831: the additional territory to the east became McLean County.
Tazewell County Illinois 1831.png

Tazewell County between 1831 and 1841: the last of the county's additional territory became part of LaSalle County.
Tazewell County Illinois 1841.png

Tazewell County in 1841, reduced to its present borders.

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