
Cheap Apartments for Rent in Union, MO from $500 (18 Rentals)
Search the lowest-cost Apartments available for rent right now in Union.


Chapel Ridge of Union

114 Delmar Ave, Unit 114

Whispering Meadows

990 S Lay Ave

Village on the Green
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.

Summit Valley Apartments

Osage Estates Apartments

Pacific Village Apartments

Autumn Leaf Apartment Homes

Cedar Lakes Apartments

Woodridge Manor Apartments
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.

6 S Center St

610 W Main St

101 Sunset Ln

234 Hobart St

210 Bobwhite Ln

Riverbend Estates III
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.
Union, MO Local Guide

How much does it cost to rent an apartment in Union?
| Bedroom | Average Rent | Cheapest Rent | Highest Rent |
|---|---|---|---|
| Union 1 Bedroom Apartments | $1,486 | $680 | $1,990 |
| Union 2 Bedroom Apartments | $1,859 | $875 | $3,015 |
| Union 3 Bedroom Apartments | $2,351 | $1,200 | $3,185 |
| Union 4 Bedroom Apartments | $3,225 | $3,000 | $3,400 |
Browse Top Apartments in Union
See all Apartments in UnionExplore Union
Union, MO Local Guide
- Nearby Cities
- ZIP codes
- Local Counties
- School Districts
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 $680. Summit Valley Apartments in the Gray Summit neighborhood has the second lowest priced unit, which is a 1 Bed apartment currently listed from $800. 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 | $680 |
| Summit Valley Apartments | One Bed, One Bath | 1BR,1BA | $800 |
| Chapel Ridge of Union | 1 Bedrooms | 1BR,1BA | $925 |
| Osage Estates Apartments | 2 Beds, 1 bath | 2BR,1BA | $950 |
| Autumn Leaf Apartment Homes | 2 Bedroom Downstairs | 2BR,2BA | $950 |
Best Value Apartments for Rent in Union, MO and Nearby
As of January 29, 2026 the best value apartment in the Union area is the $1.25 price per square foot Estate Homes Model at The Waterways of Lake Saint Louis Homes in the in the Whispering Woods neighborhood starting from $3,000. The second greatest value Union apartment is the 3 Beds, 2 baths Model at Osage Estates Apartments starting at $1,300 with a $1.15 price per square foot in the Gray Summit 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. |
|---|---|---|---|
| The Waterways of Lake Saint Louis Homes | Estate Homes | 4BR,2.5BA | $1.25 |
| Osage Estates Apartments | 3 Beds, 2 baths | 3BR,2BA | $1.15 |
| Preserve at Research Park | Misthaven | 2BR,2BA | $1.36 |
| Washington Terrace | 2B/2B | 2BR,2BA | $1.23 |
| Walden Pond | 3A | 3BR,2BA | $1.30 |
| Autumn Leaf Apartment Homes | 2 Bedroom Downstairs | 2BR,2BA | $0.93 |
| 114 Delmar Ave, Unit 114 | 114 Delmar Ave | 2BR,1BA | $0.98 |
| The Waterways of Lake Saint Louis Apartments | 1 Bedroom | 1BR,1BA | $1.36 |
| Summit Valley Apartments | One Bed, One Bath | 1BR,1BA | $0.98 |
| 990 S Lay Ave | 990 South Lay | 1BR,1BA | $1.36 |
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 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 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 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 $680 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 $900 at Summit Valley 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.
Articles, How-To's, and Tips

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.

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.

Renting with Roommates: Realistic Expectations for Shared Lease
Written by: Christine Leonard, Esq.
Given the high costs for housing, I have found that many people are looking for a roommate to share expenses. These arrangements can increase opportunities for more desirable and larger spaces.