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Rental Market Trends in O'Fallon, MO

Updated September 2026

The average rent in O'fallon, MO is $1,334/month.

Rent in O'fallon is 20% lower than the national average rent of $1,665/month, making this one of the less expensive cities statewide.

$1,334/month

Average Rent

763 Sq Ft

Average Size

-1%

Change / Year

732

Available Apartments

O'fallon rent varies by unit size and layout:

  • Studio apartments in O'fallon average $770 per month.
  • One-bedroom apartments in O'fallon average $1,334 per month.
  • Two-bedroom apartments in O'fallon average $1,622 per month.
  • Three-bedroom apartments in O'fallon average $2,184 or more per month.

Average Rent by Home Type

Bedrooms
Average Rent
Average Sq Ft
Studio
$770/month
334 Sq Ft
One Bedroom
$1,334/month
763 Sq Ft
Two Bedroom
$1,622/month
1,023 Sq Ft
Three Bedroom
$2,184/month
1,401 Sq Ft
Bedrooms
Average Rent
Average Sq Ft
Two Bedroom
$1,650/month
981 Sq Ft
Three Bedroom
$2,377/month
1,490 Sq Ft
Four Bedroom
$2,769/month
2,232 Sq Ft
Bedrooms
Average Rent
Average Sq Ft
Three Bedroom
$2,277/month
1,599 Sq Ft
View O'fallon Apartments

How much has average rent changed in O'fallon, MO?

In the past year, rent has decreased by 1%, which averages out to $13 less per month.

Market Trends Over Time

September 2026

2025 2026
Market Trends Over Time

Rent Ranges in O'fallon, MO

September 2026
$1,501 - $2,000
Most rental prices fall within this range
Rent Ranges in O'fallon, MO
Percentage*
Rent Range
0% Below $700/month
12% $700 - $1,000/month
35% $1,001 - $1,500/month
41% $1,501 - $2,000/month
12% Above $2,000/month

What salary do I need to live comfortably in O'fallon, MO?

Because the average rent in O'fallon is $1,334, you’ll want to make about $4,446 per month or $53,352 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.

City

O'fallon, MO

732 Available Apartments for Rent

Search for Nearby Apartments

How does O'fallon, MO compare to other nearby cities and neighborhoods?

Use the tool below to compare O'fallon, MO 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 Guide

Apartment Averages

Compare Rent Trends Nearby

Get a clearer picture of the area by viewing rent trends in nearby cities.

  • Dardenne Prairie

    Dardenne Prairie

    Avg Rent: $1,460/month

  • Lake Saint Louis

    Lake Saint Louis

    Avg Rent: $1,289/month

  • Cottleville

    Cottleville

    Avg Rent: $1,563/month

  • Saint Peters

    Saint Peters

    Avg Rent: $1,407/month

  • Wentzville

    Wentzville

    Avg Rent: $1,365/month

  • Weldon Spring

    Weldon Spring

    Avg Rent: $1,546/month

  • Saint Charles

    Saint Charles

    Avg Rent: $1,295/month

Apartment Communities in O'fallon We Think You'll Love

Enclave at Winghaven

Enclave at Winghaven

1000 Applerock Dr,
O'Fallon, MO 63368

1-3 Beds | $1,125 - $1,959

Timber Club

Timber Club

1101 Mid Rivers Place Dr,
Saint Peters, MO 63304

1-2 Beds | $1,421 - $2,533

The Jewel O'Fallon

The Jewel O'Fallon

1000 Crown Jewel Cir,
O'Fallon, MO 63366

1-3 Beds | $1,289 - $1,936

Casalon Parkway Apartments

Casalon Parkway Apartments

200 Casalon Pky,
O'Fallon, MO 63366

1-2 Beds | $1,048 - $2,033

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Frequently Asked Questions

What is the average rent in O'fallon?

The average rent in O'fallon is $1,334 per month, which is 19.9% 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, MO is $2,377 per month.

Are rents going up or down in O'fallon?

Rents in O'fallon, MO are decreasing, with prices down 1.0% year-over-year and $13 less per month.

What rent range is most common in O'fallon?

In O'fallon, MO, 41% of apartments fall between $1,501 - $2,000/month, though prices may vary depending on location and other factors.

United States Missouri O'fallon Rental Trends

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.

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© 2026 CoStar Group, Inc.

Equal Housing Opportunity