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Homes & Apartments for Rent in St. Clair County, IL

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What to Know About

Life in St. Clair County & Beyond

St. Clair County shares many of the great qualities that make Illinois a desirable place to live.

Illinois is known for its rich cultural heritage, lively urban centers, and beautiful countryside landscapes. Explore the state's cultural heritage by visiting renowned museums such as the Lincoln Presidential Library and Museum, the Field Museum of Natural History, the Museum of Science and Industry, and the Art Institute of Chicago. The state also has a thriving theater and art scene, including the renowned Steppenwolf Theatre Company in Chicago. Illinois is also home to respected universities like the University of Illinois at Urbana-Champaign and Northwestern University.

Outdoor enthusiasts will love the scenic beauty of the Shawnee National Forest and the adventure-filled trails of the Starved Rock State Park. Sports fans will be in their element in Illinois, cheering on the Chicago Bears (NFL), Chicago Blackhawks (NHL), Chicago Cubs (MLB), Chicago White Sox (MLB), and Chicago Bulls (NBA). Experience famous attractions like the Willis Tower, Navy Pier, and the Lincoln Park Zoo. Also, enjoy the musicals and plays at Broadway-in-Chicago, festivals throughout the summer months, and culinary tours of the local restaurants.

With its vibrant cultural scene, exciting entertainment options, and top-notch educational opportunities, Illinois offers a high quality of life, making it a great place to live.

Rental Market Trends

St. Clair County, IL

As of October 2026, St. Clair County's rental market is balanced, with rentals spending about 33 days on the market, slower than in Illinois (30), and rents up 5.1% over the past year. St. Clair County's average rent is 43.8% ($1,102) lower than the Illinois average of $2,517 and 32.0% ($667) lower than the U.S. average of $2,082.

Average Rent
$1,415
Monthly ChangeMonth Over Month Change
Increased0.50% ($7)
Yearly ChangeYear Over Year Change
Increased5.1% ($69)
Days on Market
33
Unit Type Average Rent Monthly ChangeMonth Over Month Change Yearly ChangeYear Over Year Change
1 Bed $860 Increased0.11% ($1) Increased2.4% ($20)
2 Beds $1,181 Increased0.45% ($5) Increased3.9% ($45)
3 Beds $1,655 Increased0.54% ($9) Increased4.7% ($74)
Cities within St. Clair County Average Rent Avg. Rent vs. St. ClairAverage Rent vs. St. Clair County Days on Market
Belleville $1,280 Decreased9.5% ($135) 33 days
East St. Louis $1,378 Decreased2.6% ($37) 33 days
O'Fallon $1,754 Increased24.0% ($339) 30 days
Fairview Heights $1,356 Decreased4.2% ($59) 32 days
Mascoutah $1,446 Increased2.2% ($31) 32 days
Based on rentals advertised on RentalSource in and around St. Clair County.
Frequently Asked Questions
St. Clair County Rental Market FAQs

Explore rental prices, market conditions, and affordability in St. Clair County, IL.

The average rent in St. Clair County, IL is $1,415 per month.
In St. Clair County, the average rent is $860 per month for a 1-bedroom home, $1,181 for a 2-bedroom home and $1,655 for a 3-bedroom home.
The average rent in St. Clair County is 32% ($667) lower than the national average of $2,082 per month.
The rental market in St. Clair County, IL is currently balanced, with rentals spending about 33 days on the market, slower than in Illinois (30), and rents up 5.1% over the past year.
Based on the current averages, a household would need an annual income of $47,200 to comfortably afford a 2-bedroom home in St. Clair County.
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