3 Bedroom Apartments for Rent in O'Fallon, MO (59 Rentals)

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Avenue64 Apartments
Rent Specials
$2,339 - $2,387
Total Monthly Price

Total Monthly Price

Base Rent
$1,434 - $2,776
Total Monthly Price
$1,434 - $2,776
3 Bedroom Apartments Available Aug 26

Avenue64 Apartments

1000 Watermark DrO'Fallon, MO 63368
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Practical Tips for Renters: How to Identify a Great Rental and Avoid Red Flags

Looking for the perfect new rental? Learn great ways to spot the perfect apartment for you, identify common red flags, and avoid rental issues and scams with these expert provided actionable tips.

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property at 1203 Ashford Place Dr

$3,000

Total Monthly Price

Total Monthly Price

Base Rent
$3,000
Total Monthly Price
$3,000

3 Bedroom, 2.5 Bath Home for Rent

Available Aug 24

1203 Ashford Place Dr

O'FallonMO63366

Renters Insurance 101: What It Is, What It Covers, and Why You Need It

From theft to fire to water damage, the unexpected can happen to any renter. Discover why renters insurance is one of the smartest and most affordable investments you can make as a tenant.

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How I Find the Perfect Rental for My Clients: A Real Estate Pro's Guide

Finding the right apartment starts with three things: location, cost, and amenities. Get the insider perspective from a real estate professional on how to nail all three.

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Pin Oak Pointe
3 Bedroom Apartments

Pin Oak Pointe

8001 Oakhaven DrO'Fallon, MO 63368
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Bramblett Hills
3 Bedroom Apartments

Bramblett Hills

1000 Bramblett CrossingO'Fallon, MO 63366
Corporate Housing

Renting with Roommates: Realistic Expectations for Shared Lease

Sharing a lease? Learn how to set clear expectations with your roommates on routines, bills, and cleaning to ensure a successful and peaceful shared living arrangement.

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property at 5571 Wavecrest Cir

$2,850

Total Monthly Price

Total Monthly Price

Base Rent
$2,850
Total Monthly Price
$2,850

3 Bedroom, 2.5 Bath Townhome for Rent

Available Now

5571 Wavecrest Cir

CottlevilleMO63304

Roommate Matching: Finding the Right Fit and Avoiding Pitfalls

When searching for a roommate, follow this list of essential steps and set clear expectations to create a solid foundation for a harmonious living situation.

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Showing Results 1-50, Page 1 of 2

O'Fallon, MO Local Guide

O'Fallon 3 Bedroom Apartment Units with Current Availability by Neighborhood

Availability Confirmed As of: August 21, 2026

There are currently 33 available 3 Bedroom apartment units in O'Fallon, MO neighborhoods that range in price from $1,582 to $2,875. Heres is today's list of the top neighborhoods in O'Fallon with the most available 3 Bedroom apartments:

NeighborhoodAvailable UnitsMedian PriceMin Price
OFallon St Charles28$2,339$1,582
Tysons Corner4$2,190$1,582
Whispering Woods1$1,926$1,660

Largest Available O'Fallon 3 Bedroom Apartments

The largest available 3 Bedroom apartment unit in O'Fallon, MO is found at The Willows in the Wentzville neighborhood and is 1,667 square feet priced from $2,725. Montage at Hawk Ridge in the Lake St. Louis neighborhood has the second largest 3 Bedroom, which is sized at 1,603 square feet and currently listed start at $2,525. Here is today’s list of the largest available 3 Bedroom units in O'Fallon:

Apartment ListingModel NameSquare FootagePriced From
The WillowsAspen1,667 Sq Ft$2,725
Montage at Hawk RidgeThe Grand Montage1,603 Sq Ft$2,525
The Waterways of Lake Saint Louis ApartmentsWaterside1,350 Sq Ft$1,780
Altair at the PreserveWestborough1,295 Sq Ft$2,280
Prairie PointThe Knollmont1,258 Sq Ft$1,815
O'Fallon Lakes ApartmentsThe Carlyle1,157 Sq Ft$1,475

Cheapest Available O'Fallon 3 Bedroom Apartments

As of August 21, 2026 the lowest priced 3 Bedroom apartment unit in O'Fallon, MO is the The Carlyle Model starting from $1,475 at O'Fallon Lakes Apartments in the Whispering Woods neighborhood. The second most affordable O'Fallon 3 Bedroom is the Waterside Model at The Waterways of Lake Saint Louis Apartments starting at $1,780 in the Lake St. Louis neighborhood. The average price for all 3 Bedroom apartments in O'Fallon is currently $2,373. Here is today’s list of the cheapest available 3 Bedroom options in O'Fallon:

Apartment ListingModel NamePriced From
O'Fallon Lakes ApartmentsThe Carlyle$1,475
The Waterways of Lake Saint Louis ApartmentsWaterside$1,780
Prairie PointThe Knollmont$1,815
Altair at the PreserveWestborough$2,280
Montage at Hawk RidgeThe Grand Montage$2,525
The WillowsVail$2,725

Real Estate and Rental Term Glossary | ApartmentHomeLiving.com Renter University

From the letter A all the way to the letter Z, the Real Estate and Rental Term Glossary from the content team at ApartmentHomeLiving.com provides our visitors and shoppers with a little clarity and helpful guidance in navigating the real estate world through definitions and explainers for the top subjects and terms that someone may come across during the leasing, buying, or selling process.

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O'Fallon, MO
Population: 88,472

Ranked #376

in US Census Population by City

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Best Local Schools in
O'Fallon, MO

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Remember the 3 Rules of Real Estate:
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Frequently Asked Questions about 3 Bedroom O'Fallon Apartments

How much is the average rent for a 3 Bedroom O'Fallon Apartment?

The average rent for a 3 Bedroom Apartment in O'Fallon is $2,373.

What is the largest available 3 Bedroom O'Fallon Apartment for rent?

Today's apartment with the most square footage in O'Fallon is a 1,667 square feet unit starting from $2,725 at The Willows.

What is the average size for O'Fallon 3 Bedroom Apartments for rent?

The average size for a 3 Bedroom rental in O'Fallon is currently 1,492 sq ft.

Expert Rental Resources

The rental experts at ApartmentHomeLiving.com provide you with top advice, tools, and tips for understanding the leasing process and finding the perfect rental. Here are a few helpful rental and leasing articles from our experts to guide you on your search.

Articles, How-To's, and Tips

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Practical Tips for Renters: How to Identify a Great Rental and Avoid Red Flags

Written by: Robin Stewart

Renters want to find a great apartment, the right place for them, one that checks all the boxes of location, rental cost, amenities, safety, and more.

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First Apartment Regrets: Real Renters Share What They'd Do Differently

Written by: Robin Stewart

Hindsight is 20/20. Live and Learn. With age comes wisdom. We’re familiar with all those expressions, and all of them apply to lessons first-time renters learn.

decorative image for Renters Insurance 101: What It Is, What It Covers, and Why You Need It article

Renters Insurance 101: What It Is, What It Covers, and Why You Need It

Written by: Robin Stewart

Insurance seems to be a part of life. In some states, having insurance is the law, as is the case for automobile insurance. Renters are no exception.

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Apartment Occupancy Rates: Renter Attraction vs Renter Retention

Written by: Robin Stewart

There’s a tenet in marketing about client or customer attraction and retention. Studies and data have consistently shown it costs less to keep a current customer than to attract a new one.