
Cheap Apartments for Rent in St. Clair, MO from $400 (27 Rentals)
Search the lowest-cost Apartments available for rent right now in St. Clair.


Total Monthly Price
125 Crescent Lake Rd

990 S Lay Ave

30 E. Lewis St., Unit A, Unit A

25 Maple St

Total Monthly Price
716 Tall Oaks Dr, Unit 100, Unit 100
What Does “Rent Burdened” Mean? How Much Rent Is Too Much
Learn the official definition (spending 30% or more of your gross income on housing) and how to calculate your exact rent-to-income ratio. This guide offers expert tips on factoring in total housing costs (including utilities and fees) and budgeting accurately to avoid unnecessary financial strain.

Autumn Leaf Apartment Homes

St. Clair Plaza Apartments

Village on the Green

Ballwin Manor

Osage Estates Apartments

Summit Valley Apartments
Your Guide to Co-Signers: The Risks, Rewards, and Everything in Between
Thinking about getting a co-signer for your rental application? We break down what a co-signer is, the potential benefits, and the serious risks for both parties. Find out if it's the right choice for you.

Highgrove at Big Bend

Pacific Village Apartments

Chapel Ridge of Union

Greenmar Apartments

Woodridge Manor Apartments

6 S Center St
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.

Verda Vista Apartments

1091 Oregon St

21 Village W Ct

Timber Ridge Apartments

South Pointe Apartments

Meramec Place
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.

1118 Franklin Ave

3869 Treebrook Dr

58 Weis Ave
St. Clair, MO Local Guide

How much does it cost to rent an apartment in St. Clair?
| Bedroom | Average Rent | Cheapest Rent | Highest Rent |
|---|---|---|---|
| St. Clair Studio Apartments | $1,436 | $1,436 | $1,436 |
| St. Clair 1 Bedroom Apartments | $1,496 | $650 | $2,204 |
| St. Clair 2 Bedroom Apartments | $1,818 | $650 | $2,815 |
| St. Clair 3 Bedroom Apartments | $2,274 | $1,300 | $3,185 |
| St. Clair 4 Bedroom Apartments | $3,160 | $3,100 | $3,250 |
Browse Top Apartments in St. Clair
See all Apartments in St. ClairExplore St. Clair
St. Clair, MO Local Guide
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Cheapest Available St. Clair Apartments for Rent and Nearby
 The cheapest available apartment rental in St. Clair, MO is a 1 Bed unit found at 990 S Lay Ave priced from $710. Osage Estates Apartments in the Gray Summit neighborhood has the second lowest priced unit, which is a 1 Bed apartment currently listed from $850. Here is today’s list of the most affordable St. Clair apartments for rent:
| Apartment Listing | Model Name | Bed/Bath | Priced From |
|---|---|---|---|
| 990 S Lay Ave | 990 South Lay | 1BR,1BA | $710 |
| Osage Estates Apartments | 1 Bed, 1 bath | 1BR,1BA | $850 |
| Summit Valley Apartments | One Bed, One Bath | 1BR,1BA | $855 |
| Chapel Ridge of Union | 1 Bedrooms | 1BR,1BA | $925 |
| Autumn Leaf Apartment Homes | 1 Bedroom Upstairs | 1BR,1BA | $950 |
| Greenmar Apartments | Peridot | 2BR,1BA | $995 |
| Forest Woods | The Spruce | 2BR,1BA | $1,175 |
Best Value Apartments for Rent in St. Clair, MO and Nearby
As of April 20, 2026 the best value apartment in the St. Clair area is the $1.35 price per square foot 2 Bed 2 Bath Model at Carriage Place at Lake Chesterfield in the in the Enclaves at Cherry Hills neighborhood starting from $1,600. The second greatest value St. Clair apartment is the 2A Model at Walden Pond starting at $1,200 with a $1.36 price per square foot in the Murphy neighborhood. Here is today’s list of the best values for St. Clair apartments based on price per square foot:
| Apartment Listing | Model Name | Bed/Bath | Price Per Sq.Ft. |
|---|---|---|---|
| Carriage Place at Lake Chesterfield | 2 Bed 2 Bath | 2BR,2BA | $1.35 |
| Walden Pond | 2A | 2BR,2BA | $1.36 |
| Retreat at Seven Trails | The Breckenridge | 2BR,1BA | $1.40 |
| Summit Valley Apartments | One Bed, One Bath | 1BR,1BA | $1.05 |
| Greenmar Apartments | Jade | 2BR,1BA | $1.34 |
| Autumn Leaf Apartment Homes | 1 bedroom downstairs | 1BR,1BA | $1.24 |
| 1050 Plaza Ct N, Unit 23 | 1050 Plaza Ct N | 2BR,1BA | $0.93 |
| Osage Estates Apartments | 1 Bed, 1 bath | 1BR,1BA | $1.24 |
| Chapel Ridge of Union | 1 Bedrooms | 1BR,1BA | $1.37 |
| 125 Crescent Lake Rd | 125 Crescent Lake Rd | 1BR,1BA | $1.04 |
10 Hidden Costs of Renting You Should Budget for Before Signing a Lease
Avoid financial stress when renting. Learn about the 10 most common hidden costs—from pet fees to utilities—you must budget for before you sign a lease.
Read ArticleDon'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.
Read ArticleThe 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.
Read ArticleCash 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.
Read ArticleQuick 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.
Best Local Schools in St. Clair, MO
School data provided by Great Schools
Remember the 3 Rules of Real Estate:Location, Location, Location!
Explore St. Clair, MO Rentals by Map
See the most popular apartments and homes in St. Clair, MO
Frequently Asked Questions about Cheap St. Clair Apartments
How much is rent for a Cheap One Bedroom St. Clair Apartment?
The lowest price for a Cheap One Bedroom St. Clair Apartment is $710 at 990 S Lay Ave.
What is the lowest price for a Cheap Two Bedroom St. Clair Apartment for rent?
Today's best deal for a Cheap Two Bedroom Apartment in St. Clair is starting from $950 at Osage Estates Apartments.
What is the most affordable St. Clair Three Bedroom Apartment?
The best deal on a cheap St. Clair Three Bedroom Apartment rental is at Osage Estates Apartments and starts from $1,300.
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

What Does “Rent Burdened” Mean? How Much Rent Is Too Much
Written by: Lauren Harrington
This article draws from first-hand renter experiences and recurring financial challenges reported after moving in.

Maximizing Your Refund: Essential Tax Tips for Renters
Written by: Christine Leonard, Esq.
Other than tax professionals, I can’t think of anyone who looks forward to tax season. For everybody else, April is a stressful month to collect information and meet deadlines.

18 Must-Ask Rental Tour Questions That Reveal the Truth about a Property
Written by: Lauren Harrington
Renting your next home can feel thrilling and overwhelming at the same time.

A Renters Guide for Tips on Writing Your Notice for Not Renewing Your Apartment
Written by: Bob Mallory
Packing up everything you own to move is so stressful for many that ending your apartment lease can feel like a small or unimportant task. Ending your lease involves more than simply turning over your keys on the last day.