3 Bedroom Apartments for Rent in O'Fallon, IL (21 Rentals)

How Many Bedrooms?Done
Select your price rangeDone
Lifestyle Matching SearchDone
By AmenitiesDone
By Community TypeDone
Features and AvailabilityDone
Done
close
View Me
Aberdeen Village
3 Bedroom Apartments

Aberdeen Village

204 Coral Sea WayO'Fallon, IL 62269
  • Utilities Included
close
View Me
702 S Lincoln Ave
3 Bedroom Apartments

702 S Lincoln Ave

702 S Lincoln AveO'Fallon, IL 62269

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.

close
View Me
Carol Ann
3 Bedroom Apartments

Carol Ann

686-688 Carol Ann DrO'Fallon, IL 62269

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.

close
View Me
721 Christy Ln
3 Bedroom Apartments

721 Christy Ln

721 Christy LnBelleville, IL 62221
close
View Me
14 Lexington Dr
3 Bedroom Apartments

14 Lexington Dr

14 Lexington DrFairview Heights, IL 62208

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.

close
View Me
2 Chateau Dr
3 Bedroom Apartments

2 Chateau Dr

2 Chateau DrFairview Heights, IL 62208
close
View Me
40 Hollandia Dr
3 Bedroom Apartments

40 Hollandia Dr

40 Hollandia DrFairview Heights, IL 62208

O'Fallon, IL Local Guide

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

Availability Confirmed As of: September 20, 2025

There are currently 199 available 3 Bedroom apartment units in O'Fallon, IL neighborhoods that range in price from $455 to $5,554. Heres is today's list of the top neighborhoods in O'Fallon with the most available 3 Bedroom apartments:

NeighborhoodAvailable UnitsMedian PriceMin Price
Metro East196$1,540$455
OFallon3$1,851$1,540

Largest Available O'Fallon 3 Bedroom Apartments

Apartment ListingModel NameSquare FootagePriced From
Green Mount LakesO Fallon1,330 Sq Ft$1,851
Longacre Apartment Resort3BR/2BA1,285 Sq Ft$1,765

Cheapest Available O'Fallon 3 Bedroom Apartments

As of September 20, 2025 the lowest priced 3 Bedroom apartment unit in O'Fallon, IL is the Rockwood C1 Model starting from $1,540 at Storyboard on Rockwood in the OFallon neighborhood. The second most affordable O'Fallon 3 Bedroom is the 3BR/2BA Model at Longacre Apartment Resort starting at $1,765 in the Sullivan Manors neighborhood. The average price for all 3 Bedroom apartments in O'Fallon is currently $1,819. Here is today’s list of the cheapest available 3 Bedroom options in O'Fallon:

Apartment ListingModel NamePriced From
Storyboard on RockwoodRockwood C1$1,540
Longacre Apartment Resort3BR/2BA$1,765
Green Mount LakesO Fallon$1,851

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.

decorative image of people with a giant lease agreement

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

Explore O'Fallon, IL Rentals by Map

View Map
O'Fallon, IL Apartments Map
View Map
O'Fallon, IL Rental Homes Map

Getting Around O'Fallon, IL

Walk Score®

37 / 100

Car-Dependent

Most errands require a car

Bike Score®

40 / 100

Somewhat Bikeable

Minimal bike infrastructure

Transit Score®

1 / 100

Minimal Transit

It may be possible to get on a bus

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 $1,819.

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 1,330 square feet unit starting from $1,851 at Green Mount Lakes.

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 1,333 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.

decorative image for How to Negotiate Your Apartment Lease and Save Money article

How to Negotiate Your Apartment Lease and Save Money

Written by: Christine Leonard, Esq.

Everything is a negotiation in real estate! 

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

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.

decorative image for Your Guide to Co-Signers: The Risks, Rewards, and Everything in Between article

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.

decorative image for The Ultimate Long-Distance Moving Checklist: Tips from a Real Estate Pro article

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

Written by: Christine Leonard, Esq.

Hard truth. Moving is never easy. I’ve done it all – from local moves to cross-country relocations From packing to unpacking the last box, I have found moving to be an exhausting, expensive and stressful experience every time.