Monroe County, Illinois
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About Monroe County
Monroe County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 34,962. Its county seat and largest city is Waterloo. Monroe County is included in the St. Louis, MO-IL Metropolitan Statistical Area. It is located in the southern portion of Illinois known historically as "Little Egypt".
Description adapted from Wikipedia, CC BY-SA 4.0.
Monroe County at a glance
- County seat
- Waterloo
- Population
- 34,962 (2020)
- Land area
- 398 sq mi
- Founded
- 1816
Largest communities in Monroe County
- Waterloo County seat11,013
- Dupo3,996
- Hecker429
- Maeystown150
- Fults28
History of Monroe County
Indigenous peoples lived along the Mississippi River and related waterways for thousands of years before European contact. French Jesuit priests in the Illinois Country encountered the Kaskaskia and Cahokia, bands of the Illiniwek confederacy. The first European settlement in this area was St. Philippe, founded in 1723 by Philippe François Renault, a French courtier, on his concession about three miles north of Fort de Chartres along the Mississippi River. This early agricultural community quickly produced a surplus, and grains were sold to the lower Louisiana colony for years. They were integral to that community's survival, as its climate did not allow cultivation of such staple grains. Monroe County was formed in 1816 out of Randolph and St. Clair counties, as the 8th county created from the then Illinois Territory.
Adapted from Wikipedia, CC BY-SA 4.0.
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Official channels
Monroe County election resources
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Part of Illinois Voter Check
This is the Monroe County page of Illinois Voter Check, a project of True the Vote, pointing Illinois voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Monroe County or the Illinois State Board of Elections publishes, they are right and this page is not.