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Trenton, IL

View of Trenton, IL
Image credit: Unknown author Unknown author or not provided / Public domain
Population
2,643
U.S. Census Population Estimates Program · 2025
Elevation
495 ft
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

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Trenton in context.

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

About Trenton

Trenton is an incorporated city in Clinton County, Illinois, operating within the St. Louis metropolitan area. Laid out in 1836 by pioneer A. Casad and named after Trenton, New Jersey, the agricultural and suburban residential community of approximately 2,664 has its public K-12 education administered by Wesclin Community Unit School District 3 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+100.0ratingOutskirts FitA+100.0rating

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