Median Age
40 Years
Largest Age Group
30-39 Years
Approximately 14% of Residents
Under 20
24%
Over 65
20%
Avg Rent
$785
Population
26,439
Renter Mix
43% Rent
Alton sits on a limestone bluff above the Mississippi River, about 25 miles north of St. Louis, carrying the kind of layered history that most cities its size can only claim in small pieces. The city was the site of the final Lincoln-Douglas debate in October 1858 and served as a significant stop on the Underground Railroad, and that history is still visible in the architecture, streets, and preserved landmarks throughout the downtown core. Lewis and Clark College anchors the educational presence in the area, while healthcare, retail, and river commerce form the backbone of the local economy. Neighborhoods range from hillside streets lined with 19th-century homes to quieter residential pockets closer to the river's edge.
The housing mix reflects the city's older bones, with converted historic buildings, standalone apartment communities, and modest multi-unit rentals spread across its 16 square miles. Renters looking for character-rich spaces at accessible price points will find Alton a compelling option compared to its larger St. Louis-area neighbors. Daily life here moves at a measured pace, shaped by walkable riverfront streets, independent shops, and a strong sense of local identity that larger metro areas rarely preserve this well.
Median Household Income
$48,738
Average: $62,133
Education
5,115
Residents Have a Degree
Job Market
12,430
Workers Employed
Median Age
40 Years
Largest Age Group
30-39 Years
Approximately 14% of Residents
Under 20
24%
Over 65
20%
Housing Distribution
Alton has more homeowners than renters.
Education Distribution
Review this city's overall education levels.
As of May 2026, the average apartment rent in Alton, IL is $656 for a studio, $785 for one bedroom, $894 for two bedrooms, and $1,101 for three bedrooms. Apartment rent in Alton has increased by 4.5% in the past year.
Explore how walkable, bikeable, drivable, and transit-friendly Alton, IL is for everyday living.
Fairly Walkable
Walkability
Limited Public Transit
Transit
Moderately Drivable
Drivability
Fairly Bikeable
Bikeability
Public
Grades K-5
424 Students
Public
Grades K-5
400 Students
Eunice Smith Elementary School
Public
Grades PK-5
288 Students
Public
Grades K-5
218 Students
Public
Grades 6-8
1,241 Students
Public
Grades PK & 9-12
1,990 Students
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© 2026. All rights reserved.
† Our analysis of utilities, groceries, transportation, healthcare, home prices, and other goods and services is sourced from the Cost of Living Index, a respected benchmark published by the Council for Community and Economic Research (C2ER) that provides a thorough overview of living expenses across different regions.
Rent data is provided by CoStar Group’s Market Trend reports. As the industry leader in commercial real estate information, analytics, and news, CoStar conducts extensive research to produce and maintain a comprehensive database of commercial real estate information. We combine this data with public record to provide the most up-to-date rental information available.
Consumer goods, services, and home prices are sourced from the Cost of Living Index published by the Council for Community and Economic Research (C2ER). The data on this page is updated quarterly. It was last published in February 2026.
Demographic information comes from Neustar and combines detailed address data with U.S. Census and American Community Survey statistics to produce reliable local estimates.