1 Bedroom Apartments for Rent in O'Fallon, MO (43 Rentals)

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Cash or credit? Understanding the Importance of Credit Score in Real Estate and Renting

Discover how your credit score impacts your ability to lease or buy a home. Learn how credit scores are determined, how to check yours, and strategies to improve it for real estate success.

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Bramblett Hills
1 Bedroom Apartments

Bramblett Hills

1000 Bramblett CrossingO'Fallon, MO 63366
Corporate Housing

The Art of the Rental Viewing: What to look for during a property tour

Touring a rental? This guide helps you know exactly what to look for, from safety features to hidden flaws, so you can confidently sign your lease or keep searching.

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Smart Renter's Guide: Calculating Affordable Rent & Housing Costs

Wondering how to determine your rental budget? This comprehensive guide covers everything from the 30% rule to hidden fees and effective budgeting strategies.

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Montage at Hawk Ridge
1 Bedroom Apartments

Montage at Hawk Ridge

1000 Centennial Club Drive, LkLake St. Louis, MO 63367

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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St Peters Villa
1 Bedroom Apartments

St Peters Villa

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

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

Availability Confirmed As of: November 13, 2025

There are currently 242 available 1 Bedroom apartment units in O'Fallon, MO neighborhoods that range in price from $995 to $1,825. 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 Charles134$1,427$995
Tysons Corner63$1,495$1,111
Whispering Woods45$1,500$995

Largest Available O'Fallon 1 Bedroom Apartments

The largest available 1 Bedroom apartment unit in O'Fallon, MO is found at Harmony Ridge Apartments in the OFallon St Charles neighborhood and is 1,074 square feet priced from $1,610. Avenue64 Apartments in the Tysons Corner neighborhood has the second largest 1 Bedroom, which is sized at 1,045 square feet and currently listed start at $1,660. Here is today’s list of the largest available 1 Bedroom units in O'Fallon:

Apartment ListingModel NameSquare FootagePriced From
Harmony Ridge Apartments1 BD/1BA Loft-Freemont1,074 Sq Ft$1,610
Avenue64 ApartmentsA21,045 Sq Ft$1,660
Waterways ApartmentsBrookside IIII990 Sq Ft$1,475
Preserve at Research ParkMonarch898 Sq Ft$1,299
Bramblett HillsJASMINE860 Sq Ft$1,390
The Jewel O'FallonSapphire860 Sq Ft$1,391
Prairie PointThe Sunswept831 Sq Ft$1,290
Altair At The PreserveGreenbriar826 Sq Ft$1,515

Cheapest Available O'Fallon 1 Bedroom Apartments

As of November 13, 2025 the lowest priced 1 Bedroom apartment unit in O'Fallon, MO is the 1BR/1.0BA Model starting from $995 at Amber Court Apartments in the Whispering Woods neighborhood. The second most affordable O'Fallon 1 Bedroom is the 1 Bedroom / Phase 1 & 2 Model at Casalon Parkway Apartments starting at $1,000 . The average price for all 1 Bedroom apartments in O'Fallon is currently $1,433. Here is today’s list of the cheapest available 1 Bedroom options in O'Fallon:

Apartment ListingModel NamePriced From
Amber Court Apartments1BR/1.0BA$995
Casalon Parkway Apartments1 Bedroom / Phase 1 & 2$1,000
Savannah Ridge Apartments1 Bedroom Garden$1,115
Hearthstone at Autumn Hollow1B/1B - 2nd Floor Pool View$1,265
Synergy at the MeadowsElement$1,275
Prairie PointThe Sunswept$1,290
Preserve at Research ParkMonarch$1,299
CitrineCanary$1,307
The SolsticeOne Bedroom$1,319
Waterways ApartmentsBrookside II$1,350

Apartment Common Area Rules: What Renters Need to Know

From the lounge to the laundry room, understand your rights and responsibilities in shared apartment spaces. Get tips on pet rules, noise, and security.

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Don't Settle: How to Negotiate Your Apartment Lease and Save Money

Discover the insider tips from an attorney and real estate agent on how to negotiate your next apartment lease. Find out what's on the table and what's not, so you can save money and get the best terms possible.

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The Ultimate Long-Distance Moving Checklist: Tips from a Real Estate Pro

Moving is tough, especially long-distance. Learn how to minimize stress & expenses with proven strategies from a real estate pro, covering everything from logistics to finances.

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Quick Rent Budget Calculator

How much rent can you afford?

The common "Rule of Thumb" is that rent should be no more than 30% of your income. How much is that? Enter your monthly income and click "Calculate My Budget" to find out.

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Pet Friendly Lifestyle
O'Fallon, MO

Ranked #448

Among cities in Missouri for Apartment listings with Pet Friendly Amenities.

Pet Friendliness Lifestyle Score

2.5
Pet Friendly

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Best Local Schools in
O'Fallon, MO

School data provided by Great Schools

Remember the 3 Rules of Real Estate:
Location, Location, Location!

Explore O'Fallon, MO Rentals by Map

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See the most popular apartments and homes in O'Fallon, MO

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Getting Around O'Fallon, MO

Walk Score®

35 / 100

Car-Dependent

Most errands require a car

Bike Score®

32 / 100

Somewhat Bikeable

Minimal bike infrastructure

What Are Walk Score®, Transit Score®, and Bike Score® Ratings?

  • Walk Score® measures the walkability of any address.
  • Transit Score® measures access to public transit.
  • Bike Score® measures the bikeability of any address.

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 $1,433.

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 1,074 square feet unit starting from $1,610 at Harmony Ridge 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 738 sq ft.

Expert Rental Resources

Helpful Apartment Articles, How-To's and Tips

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.

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Apartment Common Area Rules: What Renters Need to Know

Written by: Christine Leonard, Esq.

Back in the day when I rented one of my first apartments, the property didn’t even have laundry in the building. Now, rental properties are often competing against each other to provide the best amenities.

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How to Negotiate Your Apartment Lease and Save Money

Written by: Christine Leonard, Esq.

Everything is a negotiation in real estate! 

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The Rental Move-In Inspection Checklist: A Guide for Renters

Written by: Trey Huguley

The move-in inspection checklist is a crucial tool for both tenants and landlords. This checklist, provided by the team at ApartmentHomeLiving.com, helps document the condition of an apartment at the time of move-in.

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Your Guide to Co-Signers: The Risks, Rewards, and Everything in Between

Written by: Christine Leonard, Esq.

For many people, obstacles can arise during the rental application process for a variety of issues.