1 Bedroom Apartments for Rent in O'Fallon, MO (30 Rentals)

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Avenue64 Apartments
Rent Specials
$1,430 - $1,842
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$1,410 - $2,769
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1 Bedroom Apartments Available Now

Avenue64 Apartments

1000 Watermark DrO'Fallon, MO 63368
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Genius Ideas and Studio Layout Tips That Maximize Every Square Inch

Transform your studio apartment layout and maximize storage. Get proven ideas from a 20-year property expert to make any small space stylish and functional.

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Create a productive work-from-home apartment setup, even in a small space or studio. Discover layout ideas, desk solutions, and organization tips that actually work.

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Bramblett Hills
1 Bedroom Apartments

Bramblett Hills

1000 Bramblett CrossingO'Fallon, MO 63366
Corporate Housing

Navigating the Rental Market: Tips for First-Time Renters

Entering the rental market? Learn these simple tips and strategies to avoid common pitfalls and make confident choices. Rent with peace of mind.

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Renting Smart: Lease Basics Every Renter Needs

Demystify Your Rental Lease. Learn the basics about renting, deposits, and tenant/landlord responsibilities. Rent smart and avoid surprises. | Renter University at ApartmentHomeLiving.com

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St Peters Villa
1 Bedroom Apartments

St Peters Villa

300 Villa Circle DrSt. Peters, MO 63376
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O'Fallon, MO Local Guide

O'Fallon 1 Bedroom Apartment Units with Current Availability by Neighborhood

Availability Confirmed As of: July 09, 2026

There are currently 275 available 1 Bedroom apartment units in O'Fallon, MO neighborhoods that range in price from $950 to $1,840. Heres is today's list of the top neighborhoods in O'Fallon with the most available 1 Bedroom apartments:

NeighborhoodAvailable UnitsMedian PriceMin Price
OFallon St Charles140$1,482$950
Tysons Corner73$1,475$1,111
Whispering Woods62$1,475$950

Largest Available O'Fallon 1 Bedroom Apartments

The largest available 1 Bedroom apartment unit in O'Fallon, MO is found at The Waterways of Lake Saint Louis Apartments in the Lake St. Louis neighborhood and is 895 square feet priced from $1,350. Thornwood Apartments in the Whispering Woods neighborhood has the second largest 1 Bedroom, which is sized at 895 square feet and currently listed start at $1,350. Here is today’s list of the largest available 1 Bedroom units in O'Fallon:

Apartment ListingModel NameSquare FootagePriced From
The Waterways of Lake Saint Louis ApartmentsBrookside895 Sq Ft$1,350
Thornwood ApartmentsWildrose895 Sq Ft$1,350
Harmony Ridge Apartments1 BD/1BA Loft-Prescott III892 Sq Ft$1,580
Prairie PointThe Sunswept831 Sq Ft$1,240
Bramblett HillsCLOVE770 Sq Ft$1,500
Timber ClubCedar761 Sq Ft$1,635
The Prairie Luxury ApartmentsThe Mallard 1B/1B 1st Floor f751 Sq Ft$1,365
The SolsticeOne Bedroom751 Sq Ft$1,452
Altair at the PreserveAberdeen750 Sq Ft$1,444
Avenue64 ApartmentsA1725 Sq Ft$1,410

Cheapest Available O'Fallon 1 Bedroom Apartments

As of July 09, 2026 the lowest priced 1 Bedroom apartment unit in O'Fallon, MO is the 1 Bedroom / Phase 4 Model starting from $1,038 at Casalon Parkway Apartments in the Whispering Woods neighborhood. The second most affordable O'Fallon 1 Bedroom is the The Sunswept Model at Prairie Point starting at $1,240 in the Tysons Corner neighborhood. The average price for all 1 Bedroom apartments in O'Fallon is currently $1,483. Here is today’s list of the cheapest available 1 Bedroom options in O'Fallon:

Apartment ListingModel NamePriced From
Casalon Parkway Apartments1 Bedroom / Phase 4$1,038
Prairie PointThe Sunswept$1,240
Enclave at WinghavenChesterfield$1,345
The Waterways of Lake Saint Louis ApartmentsBrookside$1,350
Thornwood ApartmentsWildrose$1,350
The Prairie Luxury ApartmentsThe Mallard 1B/1B 1st Floor f$1,365
Avenue64 ApartmentsA1$1,410
Prairie Encore1B/1B - Parking Lot View$1,425
Altair at the PreserveAberdeen$1,444
Timber ClubHickory$1,450

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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O'Fallon, MO

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Frequently Asked Questions about 1 Bedroom O'Fallon Apartments

How much is the average rent for a 1 Bedroom O'Fallon Apartment?

The average rent for a 1 Bedroom Apartment in O'Fallon is $1,483.

What is the largest available 1 Bedroom O'Fallon Apartment for rent?

Today's apartment with the most square footage in O'Fallon is a 895 square feet unit starting from $1,350 at The Waterways of Lake Saint Louis Apartments.

What is the average size for O'Fallon 1 Bedroom Apartments for rent?

The average size for a 1 Bedroom rental in O'Fallon is currently 732 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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Renters Insurance 101: What It Is, What It Covers, and Why You Need It

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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.

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

Written by: Robin Stewart

Evaluating rental properties for clients draws many parallels to house-hunting. Whether an apartment, loft, townhouse, or other rental, finding the right place means finding “home” for your client.

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Pet-Friendly Renting: Everything You Need to Know Before You Move

Written by: Christine Leonard, Esq.

For so many of us, pets are the best companions and a big part of our lives. For this reason, a pet-friendly house or apartment is often a very important - and nonnegotiable - part of a move.