ILLINOIS STATE ARCHIVES

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Monroe County

Established
January 6, 1816 (Laws, 1815/16, p. 25)

Origin of the name of the county
Named for James Monroe, statesman and fifth president of the United States. He held numerous state and national offices in nearly 50 years of public service, and was a popular Democratic-Republican president (1817–1825).

Present area, or parts of it, formerly included in
1790–1816 — St. Clair
1795–1816 — Randolph

County Seats
1816–1825 — Harrisonville
1825–  — Waterloo

History of county governing board
1816–1818 — County Court
1818–1819 — Justices’ Court
1819–1849 — County Commissioners’ Court
1849–1873 — County Court
1873–  — Board of County Commissioners

Township Government
Monroe County has never adopted township form of government. The county has been divided into precincts.

Precinct Names
Bluff
Columbia
Harrisonville
Mitchie
Moredock
New Design
New Hanover
Prairie Du Long
Renault
Waterloo

County Map

Pertinent Databases
Federal Township Plats of Illinois
Illinois Public Domain Land Tract Sales Database
Illinois Statewide Death Index, 1916–1950
Illinois Statewide Marriage Index
Local Governmental Records Database
Name Index to Illinois Local Governments