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Columbia, IL

View of Columbia, IL
Image credit: Paul Sableman / CC BY 2.0
Population
10,865
U.S. Census Population Estimates Program · 2025
Elevation
503 ft
Median Home Value
$293,000
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,128/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$107,606
U.S. Census American Community Survey 5-Year · 2024

Explore

Columbia in context.

OverallBest places in IllinoisPopulation rankingHighest population places in IllinoisNearest larger communityArnold, Missouri8.6 miles away · 20,994 residents.

About Columbia

Columbia is a city primarily in Monroe County, Illinois, situated twelve miles south of St. Louis, Missouri. Bounded on the west by the Mississippi River, the historic farming settlement was incorporated in 1859 and has grown to approximately 11,100 residents. The community provides a scenic bluff-side setting adjacent to St. Clair County and is served by the Columbia Community Unit School District 4, which operates four campuses within the city limits.

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+99.1rating

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