Brandywine
104 Spartan Cir #1,
O'Fallon, IL 62269
$2,200 - $2,235
2 Beds
Rental Market Trends in O'Fallon, IL
What is the average rent in O'fallon, IL?
$1,411/month
Average Rent
786 Sq Ft
Average Apartment Size
+5.6%
Increase in the Last Year
As of October 2025, the average rent in O'fallon, IL is $1,411 per month. For comparison, the national average rent price in the US is currently $1,630/month, which means O'fallon rent prices are 13% lower than the national average. When you rent an apartment in O'fallon, you can expect to pay about $1,053 per month for a studio, $1,411 for a one-bedroom apartment, and around $1,531 for a two-bedroom apartment. If you opt for a three-bedroom rental, you could pay $1,841 or more.
Floor Plan Type
Average Rent
Average Sq Ft
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Floor Plan Type
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Floor Plan Type
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How much has average rent changed in O'fallon, IL?
In the past year, rent has increased by 5.6%, which averages out to $79 more per month.
Market Trends Over Time
The chart below compares average rent prices to the previous year during the same time period.
Last Updated October 2025
Legend
2024
2025
Rent by Neighborhood
Last Updated Today
What are the most affordable neighborhoods in O'fallon?
Based on current rent prices, Metro East is the most affordable neighborhood in O'fallon.
Neighborhood
Average Rent
Average Sq Ft
What are the most expensive neighborhoods in O'fallon?
Based on current rent prices, Metro East is the most expensive neighborhood in O'fallon.
Neighborhood
Average Rent
Average Sq Ft
Which O'fallon neighborhoods have the most rentals available?
The neighborhood in O'fallon with the most apartments available is Metro East .
Neighborhood
Average Rent
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What salary do I need to live comfortably in O'fallon, IL?
Because the average rent in O'fallon is $1,411, you’ll want to make about $4,703 per month or $56,436 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.
Studio
$865/month
$865/month
One Bedroom
$1,024/month
$1,024/month
Two Bedroom
$1,262/month
$1,262/month
Three Bedroom
$1,582/month
$1,582/month
Nearby City Rent Trends
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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 2025.
* Percentages may not total 100 due to rounding.