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Trenton, IL

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View of Trenton, IL
Population
2,643
U.S. Census Population Estimates Program · 2025
Elevation
495 ft
USGS GNIS community points and 3DEP elevation · GNIS 2026-07-06; USGS 3DEP sampled 2026-07-23
Median Home Value
$178,200
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$857/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$80,795
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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OverallBest places in IllinoisPopulation rankingHighest population places in IllinoisNearest larger communityO'Fallon, Illinois13 miles away · 32,656 residents.

About Trenton

Located in southwestern Illinois about 30 miles east of St. Louis, Trenton gives residents a quiet small-town feel within an easy drive of the metro area. Mostly situated in Clinton County, the town features peaceful neighborhoods, solid local schools, and well-maintained spots like Trenton City Park. Many people move here for the easy commute to Scott Air Force Base while enjoying lower housing costs and a friendly community. It offers a comfortable, laid-back pace of life with everyday shopping and dining just down the road.

Top Rating Signals

Highest current ratings for this town.

Outskirts FitA+100.0ratingLower FEMA County Wildfire Risk IndexA96.5ratingNearby Hospital Emergency DepartmentsA95.4rating

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