Brandywine
104 Spartan Cir #1,
O'Fallon, IL 62269
2 Beds | $2,023 - $2,380
Rental Market Trends in O'Fallon, IL
Updated September 2026
The average rent in O'fallon, IL is $1,464/month.
Rent in O'fallon is roughly equal to the national average rent of of $1,665/month.
$1,464/month
Average Rent
794 Sq Ft
Average Size
+1.9%
Change / Year
208
Available Apartments
O'fallon rent varies by unit size and layout:
- Studio apartments in O'fallon average $550 per month.
- One-bedroom apartments in O'fallon average $1,464 per month.
- Two-bedroom apartments in O'fallon average $1,545 per month.
- Three-bedroom apartments in O'fallon average $1,920 or more per month.
Average Rent by Home Type
Bedrooms
Average Rent
Average Sq Ft
Bedrooms
Average Rent
Average Sq Ft
Bedrooms
Average Rent
Average Sq Ft
How much has average rent changed in O'fallon, IL?
In the past year, rent has increased by 1.9%, which averages out to $28 more per month.
Market Trends Over Time
September 2026
2025
2026
Rent Ranges in O'fallon, IL
September 2026
$1,001 - $1,500
Most rental prices fall within this range
Percentage*
Rent Range
5%
Below $700/month
24%
$700 - $1,000/month
43%
$1,001 - $1,500/month
24%
$1,501 - $2,000/month
5%
Above $2,000/month
What salary do I need to live comfortably in O'fallon, IL?
Because the average rent in O'fallon is $1,464, you’ll want to make about $4,880 per month or $58,560 per year. The general guideline is to pay no more than 30 percent of your monthly income on rent. However, you’ll want to consider additional factors, such as your monthly bills and other expenses. Use our rent affordability calculator to help determine how much to budget for rent.
How does O'fallon, IL compare to other nearby cities and neighborhoods?
Use the tool below to compare O'fallon, IL to other nearby cities and neighborhoods. The Apartments.com neighborhood guides provide you with insight into the area’s transportation, things to do, and more.
View the O'fallon Area GuideCompare Rent Trends Nearby
Get a clearer picture of the area by viewing rent trends in nearby cities.
-
Shiloh
Avg Rent: $1,441/month
-
Fairview Heights
Avg Rent: $1,177/month
-
Swansea
Avg Rent: $1,291/month
-
Collinsville
Avg Rent: $1,007/month
-
Belleville
Avg Rent: $824/month
-
Troy
Avg Rent: $711/month
Apartment Communities in O'fallon We Think You'll Love
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Frequently Asked Questions
What is the average rent in O'fallon?
The average rent in O'fallon is $1,464 per month, which is 12.1% lower than the national average of $1,665.
What is the average rent for a house in O'fallon?
The average rent for a house in O'fallon, IL is $2,196 per month.
Are rents going up or down in O'fallon?
Rents in O'fallon, IL are increasing, with prices up 1.9% year-over-year and $28 more per month.
What rent range is most common in O'fallon?
In O'fallon, IL, 43% of apartments fall between $1,001 - $1,500/month, though prices may vary depending on location and other factors.
Methodology
† 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 September 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.
* Percentages may not total 100 due to rounding.