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Troy, IL

View of Troy, IL
Image credit: Nyttend / Public domain
Population
11,893
U.S. Census Population Estimates Program · 2025
Elevation
564 ft
Median Home Value
$268,000
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,116/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$112,434
U.S. Census American Community Survey 5-Year · 2024

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Troy in context.

OverallBest places in IllinoisPopulation rankingHighest population places in IllinoisNearest larger communityEdwardsville, Illinois6.8 miles away · 26,463 residents.

About Troy

Troy is a city in Madison County, Illinois, situated within the Metro East sector of the St. Louis metropolitan area. Platted in 1819 and incorporated in 1857, the city has a population of approximately 11,600 and is bordered by Maryville and Glen Carbon. The community is bisected by Interstates 55 and 70, providing nearby highway access for commuters traveling to downtown St. Louis, and features several neighborhood parks and local school campuses.

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+100.0ratingNearby Hospital Emergency DepartmentsA+98.5rating

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