Jefferson
County Fact Sheet
Addresses for County
Courthouse and IRAD:
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Jefferson County Courthouse
100 S. 10th Street
Mt. Vernon, IL 62864
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County Clerk
Circuit Clerk
Recorder
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(618) 244-8020
(618) 244-8007
(618) 244-8020 |
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IRAD Depository
c/o Special Collections
Morris Library–6632
Southern Illinois University
Carbondale, IL 62901
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- Telephone:
(618) 453-3040
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Established: |
March 26, 1819 (Laws, 1819, p. 51) |
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Origin of the name
of the county: |
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Named after Thomas Jefferson, third
President of the United States (1801–1809) and author of the
Declaration of Independence. |
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Present area, or
parts of it, formerly included in: |
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1815–1819 |
Edwards |
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1815–1819 |
White |
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1812–1815 |
Gallatin |
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1795–1813 |
Randolph |
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1790–1803 |
St. Clair |
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1790–1801 |
Knox, Northwest Territory |
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County Seat: |
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1819– |
Mount Vernon |
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| History
of county governing board: |
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1819–1849 |
County Commissioners’ Court |
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1849–1870 |
County Court |
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1870– |
County Board of Supervisors |
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Township
Government |
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Adopted: |
November 2, 1869 |
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Township Names: |
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Bald Hill |
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Blissville |
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Casner |
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Dodds |
Formed from Pendleton (date unknown, after 1921). |
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Elk Prairie |
Name changed from Anderson on April 29, 1870. |
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Farrington |
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Field |
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Grand Prairie |
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McClellan |
Name changed from Allen on April 29, 1870. |
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Moore’s Prairie |
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Mt. Vernon |
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Pendleton |
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Rome |
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Shiloh |
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Spring Garden |
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Webber |
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