3 Bedroom Apartments for Rent in Mascoutah, IL (23 Rentals)

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1320 McKinley St
3 Bedroom Apartments

1320 McKinley St

1320 McKinley StMascoutah, IL 62258
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Prairie Lake
3 Bedroom Apartments

Prairie Lake

31 S County RdMascoutah, IL 62258
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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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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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McKay Manor
3 Bedroom Apartments

McKay Manor

1 McKay Manor DrBreese, IL 62230

Mascoutah, IL Local Guide

Mascoutah 3 Bedroom Apartment Units with Current Availability by Neighborhood

Availability Confirmed As of: November 14, 2025

There are currently 7 available 3 Bedroom apartment units in Mascoutah, IL neighborhoods that range in price from $1,300 to $1,995. Heres is today's list of the top neighborhoods in Mascoutah with the most available 3 Bedroom apartments:

NeighborhoodAvailable UnitsMedian PriceMin Price
Outlying St Clair County7$1,880$1,300

Largest Available Mascoutah and Nearby 3 Bedroom Apartments

The largest available 3 Bedroom apartment unit in Mascoutah, IL is found at Green Mount Lakes in the OFallon neighborhood and is 1,330 square feet priced from $1,880. Longacre Apartment Resort in the Sullivan Manors neighborhood has the second largest 3 Bedroom, which is sized at 1,285 square feet and currently listed start at $1,850. Here is today’s list of the largest available 3 Bedroom units in Mascoutah:

Apartment ListingModel NameSquare FootagePriced From
Green Mount LakesO Fallon1,330 Sq Ft$1,880
Longacre Apartment Resort3BR/2BA1,285 Sq Ft$1,850
McKay Manor3 Bedroom1,266 Sq Ft$583
Green Door Apartments3BR/1.5B1,000 Sq Ft$1,400

Cheapest Available Mascoutah and Nearby 3 Bedroom Apartments

As of November 14, 2025 the lowest priced 3 Bedroom apartment unit in Mascoutah, IL is the 3 Bedroom Model starting from $583 at McKay Manor . The second most affordable Mascoutah 3 Bedroom is the 3BR/1.5B Model at Green Door Apartments starting at $1,400 in the OFallon neighborhood. The average price for all 3 Bedroom apartments in Mascoutah is currently $1,766. Here is today’s list of the cheapest available 3 Bedroom options in Mascoutah:

Apartment ListingModel NamePriced From
McKay Manor3 Bedroom$583
Green Door Apartments3BR/1.5B$1,400
Storyboard on RockwoodRockwood C1$1,540
Longacre Apartment Resort3BR/2BA$1,850
Green Mount LakesO Fallon$1,880

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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Local Guide To the Best Student Friendly Neighborhoods to Rent Near Colleges in St. Louis

A Local Experts guide to the Best Student Friendly Neighborhoods Near Colleges in the St. Louis, MO metro area for affordable living. Find your perfect Student apartment, condo, or rental home today at apartmenthomeliving.com

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

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Getting Around Mascoutah, IL

Walk Score®

22 / 100

Car-Dependent

Almost all errands require a car

Bike Score®

34 / 100

Somewhat Bikeable

Minimal bike infrastructure

Frequently Asked Questions about 3 Bedroom Mascoutah Apartments

How much is the average rent for a 3 Bedroom Mascoutah Apartment?

The average rent for a 3 Bedroom Apartment in Mascoutah is $1,766.

What is the largest available 3 Bedroom Mascoutah Apartment for rent?

Today's apartment with the most square footage in Mascoutah is a 1,330 square feet unit starting from $1,880 at Green Mount Lakes.

What is the average size for Mascoutah 3 Bedroom Apartments for rent?

The average size for a 3 Bedroom rental in Mascoutah is currently 1,000 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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A Local Expert’s Guide To the 10 Top Budget-Friendly Neighborhoods to Rent in St. Louis

Written by: Taryn Shorr-Mckee

I’m Taryn, your ApartmentHomeLiving.com team Local Expert for St. Louis, Missouri. Nicknamed “a city of neighborhoods,” St. Louis has nearly 80 distinct communities, each with unique characteristics setting it apart from others.

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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.