
Cheap Apartments for Rent in Union, MO from $500 (35 Rentals)
Search the lowest-cost Apartments available for rent right now in Union.


Chapel Ridge of Union

Water Tower Apartments

Stoneridge Townhomes

Whispering Meadows

Hummingbird Heights

990 S Lay Ave

Village on the Green
St. Louis Living: Your Local Expert's Guide to Neighborhoods and Renting
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Osage Estates Apartments

Summit Valley Apartments

Pacific Village Apartments

Autumn Leaf Apartment Homes

Cedar Lakes Apartments

Southernside Apartments

Walden Pond

Total Monthly Price
Aurora Estates
Rent According to Income: A Look at Income-Restricted Rentals
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Washington Terrace

Preserve at Research Park

Madison Rockwood

Synergy at the Meadows

Enclave at Winghaven

ReNew WestGlen

Aventura at Wentzville

Rockwood Springs
From Arch to Apartment: The St. Louis Insider's Guide to Renting Near the Area's Top Employers
The St. Louis Insider's Guide to renting near BJC, WashU, Boeing, SSM Health, and Anheuser-Busch. Find your perfect neighborhood to balance commute, lifestyle, and budget.

The Waterways of Lake Saint Louis Apartments

Carriage Place at Lake Chesterfield

Aventura at Hawk Ridge

The Solstice

Woodridge Manor Apartments

827 S Old Potosi Rd

Riverbend Estates III

102 Bluejay Hill
St. Louis's Best Affordable Neighborhoods
Learn about St. Louis and the best places to live with original content written by our St. Louis, MO Local Expert Taryn Shorr-Mckee

311 N Center St

32 Modern St

520 W 8th St
Union, MO Local Guide

How much does it cost to rent an apartment in Union?
| Bedroom | Average Rent | Cheapest Rent | Highest Rent |
|---|---|---|---|
| Union Studio Apartments | $1,521 | $1,521 | $1,521 |
| Union 1 Bedroom Apartments | $1,461 | $710 | $1,917 |
| Union 2 Bedroom Apartments | $1,898 | $875 | $2,815 |
| Union 3 Bedroom Apartments | $2,386 | $1,300 | $3,185 |
| Union 4 Bedroom Apartments | $3,139 | $3,000 | $3,400 |
Browse Top Apartments in Union
See all Apartments in UnionExplore Union
Union, MO Local Guide
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Cheapest Available Union Apartments for Rent and Nearby
 The cheapest available apartment rental in Union, MO is a 1 Bed unit found at 990 S Lay Ave priced from $710. Osage Estates Apartments in the Pacific 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 Union 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 |
| Autumn Leaf Apartment Homes | 1 Bedroom Upstairs | 1BR,1BA | $950 |
| Chapel Ridge of Union | 1 Bedrooms | 1BR,1BA | $999 |
| Walden Pond | 2A | 2BR,2BA | $1,225 |
| Aurora Estates | 2x1 Layout | 2BR,1BA | $1,250 |
| Madison Rockwood | The Claymont | 1BR,1BA | $1,257 |
| Hearthstone at Autumn Hollow | 1B/1B - ADA 1st Floor Prairie View End Cap | 1BR,1BA | $1,280 |
| Enclave at Winghaven | The Charles | 1BR,1BA | $1,296 |
Best Value Apartments for Rent in Union, MO and Nearby
As of August 03, 2026 the best value apartment in the Union area is the $1.24 price per square foot Millgate Model at Preserve at Research Park in the in the Tysons Corner neighborhood starting from $1,849. The second greatest value Union apartment is the 3 Bed 3 Bath - Washer/Dryer Model at Carriage Place at Lake Chesterfield starting at $2,075 with a $1.41 price per square foot in the Enclaves at Cherry Hills neighborhood. Here is today’s list of the best values for Union apartments based on price per square foot:
| Apartment Listing | Model Name | Bed/Bath | Price Per Sq.Ft. |
|---|---|---|---|
| Preserve at Research Park | Millgate | 3BR,2BA | $1.24 |
| Carriage Place at Lake Chesterfield | 3 Bed 3 Bath - Washer/Dryer | 3BR,3BA | $1.41 |
| Southernside Apartments | Two Bedroom | 2BR,2BA | $1.21 |
| Walden Pond | 2A | 2BR,2BA | $1.39 |
| Aurora Estates | 2x1 Layout | 2BR,1BA | $1.48 |
| Summit Valley Apartments | One Bed, One Bath | 1BR,1BA | $1.05 |
| Autumn Leaf Apartment Homes | 1 Bedroom Downstairs | 1BR,1BA | $1.24 |
| Osage Estates Apartments | 1 Bed, 1 bath | 1BR,1BA | $1.24 |
| Chapel Ridge of Union | 1 Bedrooms | 1BR,1BA | $1.48 |
| 990 S Lay Ave | 990 South Lay | 1BR,1BA | $1.42 |
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.
Read ArticleLocal 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
Read ArticleReal 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.
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 Union, MO
School data provided by Great Schools
Remember the 3 Rules of Real Estate:Location, Location, Location!
Explore Union, MO Rentals by Map
See the most popular apartments and homes in Union, MO
Frequently Asked Questions about Cheap Union Apartments
How much is rent for a Cheap One Bedroom Union Apartment?
The lowest price for a Cheap One Bedroom Union Apartment is $710 at 990 S Lay Ave.
What is the lowest price for a Cheap Two Bedroom Union Apartment for rent?
Today's best deal for a Cheap Two Bedroom Apartment in Union is starting from $950 at Osage Estates Apartments.
What is the most affordable Union Three Bedroom Apartment?
The best deal on a cheap Union 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.
Helpful Local Expert Guides

St. Louis Living: Your Local Expert's Guide to Neighborhoods and Renting
Written by: Taryn Shorr-Mckee
St. Louis is a historic city of neighborhoods — nearly 80 of them — each with its own personality, rhythm, and everyday comforts.

Local Guide To the Best Student Friendly Neighborhoods to Rent Near Colleges in St. Louis
Written by: Taryn Shorr-Mckee
Finding the right neighborhood to rent near your St. Louis college or university isn’t just about convenience.

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.
Articles, How-To's, and Tips

Rent According to Income: A Look at Income-Restricted Rentals
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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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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.