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Monmouth, IL

View of Monmouth, IL
Image credit: Nyttend / Public domain
Population
8,599
U.S. Census Population Estimates Program · 2025
Elevation
767 ft
Median Home Value
$86,800
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$733/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$61,138
U.S. Census American Community Survey 5-Year · 2024

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Monmouth in context.

OverallBest places in IllinoisPopulation rankingHighest population places in IllinoisNearest larger communityGalesburg, Illinois14 miles away · 28,581 residents.

About Monmouth

Monmouth is a city and the county seat of Warren County, Illinois, situated in the western part of the state. Home to Monmouth College—where the national Pi Beta Phi women's fraternity was founded in 1867—the historic agricultural community of approximately 8,581 is served by the Monmouth-Roseville Community Unit School District locally.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0ratingLower FEMA County Wildfire Risk IndexA+99.9rating

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