Realty.com
Buy

Start here

  • Homes for sale by state
  • Home buying tips
  • Before you start looking
  • The buying timeline

Afford it

  • Today's mortgage rates
  • Mortgage calculator
  • How much can I afford?
  • Get pre-approved

Make the deal

  • Writing a winning offer
  • Inspections & appraisals
  • Closing costs, itemized
  • Find a buyer's agent
Sell

Selling Options

  • What's my home worth?
  • Compare selling options
  • Get an instant cash offer
  • Buy before you sell

Resources

  • How selling works
  • When should I sell?
  • Home selling tips
  • Pricing your home
  • What's worth fixing first
  • Find a seller's agent
Home Loans
Find an Agent
Save searchAdvertiseSign In
Saved homesSaved searchesYour toursYour inquiriesRecently viewedAccount settings

Registered offenders on the map

Save search

Registered offenders on the map

Safety & registry resources

Review official public-safety information for any area from these government sources:

  • U.S. Dept. of Justice National Sex Offender Public Website (NSOPW)
  • FBI: state sex-offender registry directory
Homes Under $500K in O'Fallon, MO
Realty.com
Buy

Start here

  • Homes for sale by state
  • Home buying tips
  • Before you start looking
  • The buying timeline

Afford it

  • Today's mortgage rates
  • Mortgage calculator
  • How much can I afford?
  • Get pre-approved

Make the deal

  • Writing a winning offer
  • Inspections & appraisals
  • Closing costs, itemized
  • Find a buyer's agent
Save searchAdvertiseSign In
Saved homesSaved searchesYour toursYour inquiriesRecently viewedAccount settings
  • Rentals
  • Commercial

Registered offenders on the map

206 listings
Sell

Selling Options

  • What's my home worth?
  • Compare selling options
  • Get an instant cash offer
  • Buy before you sell

Resources

  • How selling works
  • When should I sell?
  • Home selling tips
  • Pricing your home
  • What's worth fixing first
  • Find a seller's agent
Home Loans
Find an Agent
Save search
3 bedsNew constructionWith a pool

Homes Under $500K in O'Fallon, MO

Homes Under $500K in O'Fallon, MO

Show Map
24 of 206 Listings
Map

Homes Under $500K in O'Fallon, MO

24 of 206 Listings

Your local team in O Fallon

TO

Thomas O'Leary

Realty.com

Lic. #2020001504

Call Thomas
LS

Lynne Schlereth

Preferred Rate

NMLS #2378688

Call Lynne
  1. 1 Magnolia — photo1Active

    $479,700

    2 bd · 2 ba · 1,912 sqft

    1 Magnolia, O'Fallon, MO

    Holly Sofka · Berkshire Hathaway HomeServices Select Properties

  2. 1 Grand Columbia — photo16Active

    $456,500

    2 bd · 2 ba · 1,826 sqft

    1 Grand Columbia, O'Fallon, MO

    Holly Sofka · Berkshire Hathaway HomeServices Select Properties

  3. 1 Columbia — photoNew4Active

    $415,400

    2 bd · 2 ba · 1,583 sqft

    1 Columbia, O'Fallon, MO

    Holly Sofka · Berkshire Hathaway HomeServices Select Properties

  4. 1 Grand Columbia II — photoNew2Active

    $462,800

    2 bd · 2 ba · 1,826 sqft

    1 Grand Columbia II, O'Fallon, MO

    Holly Sofka · Berkshire Hathaway HomeServices Select Properties

  5. 712 Highland Drive — photoNew48Active

    $250,000

    4 bd · 2 ba · 2,097 sqft

    712 Highland Drive, O'Fallon, MO

    Kristie Weber · EXP Realty, LLC

  6. 8 Jacobs Place Court — photo33Active

    $400,000

    4 bd · 3 ba · 2,763 sqft

    8 Jacobs Place Court, O'Fallon, MO

    Holly Gerchen · Epique Realty

  7. 403 Prince Charles Drive — photo23Active

    $265,000

    3 bd · 2 ba · 1,225 sqft

    403 Prince Charles Drive, O'Fallon, MO

    Aden Suraud · EXP Realty, LLC

  8. 7 Town Cryer Court — photo56Active

    $390,000

    3 bd · 2 ba · 1,470 sqft

    7 Town Cryer Court, O'Fallon, MO

    Brandon McNamee · Mac Realty Group

  9. 51 E Homefield Point Court — photo35Active

    $375,000

    4 bd · 4 ba · 2,246 sqft

    51 E Homefield Point Court, O'Fallon, MO

    Wioleta Wagrodzki · Elevate Realty, LLC

  10. 1488 Cochise Drive — photo47Active

    $350,000

    4 bd · 3 ba · 1,834 sqft

    1488 Cochise Drive, O'Fallon, MO

    Jeffrey Wells · Berkshire Hathaway HomeServices Select Properties

  11. 904 Hampshire Heath Drive — photo67Active

    $460,000

    4 bd · 4 ba · 2,346 sqft

    904 Hampshire Heath Drive, O'Fallon, MO

    Malori Nguyen · Coldwell Banker Realty - Gundaker

  12. 6 Queensboro Drive — photo37Active

    $310,000

    3 bd · 2 ba · 1,595 sqft

    6 Queensboro Drive, O'Fallon, MO

    Nicci Fears · Real Broker LLC

  13. 2602 Babble Creek Lane — photo54Active

    $395,000

    3 bd · 3 ba · 2,930 sqft

    2602 Babble Creek Lane, O'Fallon, MO

    Samantha Richardson · Main St. Real Estate

  14. 103 Marigold Meadows — photo49Active

    $339,000

    3 bd · 3 ba · 1,728 sqft

    103 Marigold Meadows, O'Fallon, MO

    Lisa Burkemper · Berkshire Hathaway HomeServices Select Properties

  15. 6915 Fieldstone Farms Drive — photo60Active

    $474,900

    5 bd · 4 ba · 3,771 sqft

    6915 Fieldstone Farms Drive, O'Fallon, MO

    Ryan Zimmer · Coldwell Banker Realty - Gundaker

  16. 1540 Batters Box Drive — photo21Active

    $257,500

    2 bd · 2 ba · 1,007 sqft

    1540 Batters Box Drive, O'Fallon, MO

    Tracy Modde · BHHS Select Properties

  17. 1114 Patsy Lane — photo41Active

    $320,000

    5 bd · 2 ba · 1,822 sqft

    1114 Patsy Lane, O'Fallon, MO

    Cheryl Wehde · Berkshire Hathaway HomeServices Select Properties

  18. 925 Daffodil Ridge Drive — photo41Active

    $435,000

    2 bd · 2 ba · 1,862 sqft

    925 Daffodil Ridge Drive, O'Fallon, MO

    Rich Loughridge · Trademark Real Estate, Inc

  19. 753 Barnwood Hill Drive — photo14Active

    $486,718

    3 bd · 3 ba · 1,749 sqft

    753 Barnwood Hill Drive, O'Fallon, MO

    Kelly Boehmer · Berkshire Hathaway HomeServices Select Properties

  20. 825 Colleen Drive — photo38Active

    $350,000

    3 bd · 3 ba · 1,444 sqft

    825 Colleen Drive, O'Fallon, MO

    Stephanie Russo · DRG - Delhougne Realty Group

  21. 151 Royallsprings Parkway — photo50Active

    $350,000

    3 bd · 3 ba · 2,458 sqft

    151 Royallsprings Parkway, O'Fallon, MO

    Lisa Sofia · RE/MAX Results

  22. 548 Boulder River Drive — photo46Active

    $359,000

    2 bd · 2 ba · 1,664 sqft

    548 Boulder River Drive, O'Fallon, MO

    Tina Knox · Worth Clark Realty

  23. 1435 Soaring Eagle Drive — photo34Active

    $439,900

    4 bd · 3 ba · 2,320 sqft

    1435 Soaring Eagle Drive, O'Fallon, MO

    Mark & Neil Gellman · EXP Realty, LLC

  24. 304 W Pitman Street — photo27Active

    $90,000

    1 bd · 1 ba · 562 sqft

    304 W Pitman Street, O'Fallon, MO

    Adam Jokisch · Adams Auction & Real Estate Services Inc.

12…9

Explore O Fallon homes

By price

  • Under $300K
  • Under $500K
  • Under $700K
  • Luxury

By bedrooms

  • 2 beds
  • 3 beds
  • 4 beds
  • 5 beds

By type

  • Single family
  • Townhomes
  • Condos
  • Manufactured homes
  • Multi-family homes
Realty.com

L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

Equal Housing OpportunityEqual Housing Lender

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

© 2026 Realty.com. All rights reserved.·Privacy·Terms·California Privacy Rights·Accessibility·Licensing

Listing data & MLS disclosures

MARIS MLS
Based on information submitted to the MLS GRID as of 2026-09-21 16:07:57 UTC. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
  • Co-ops
  • By feature

    • New construction
    • With a pool

    Your local team in O Fallon

    TO

    Thomas O'Leary

    Realty.com

    Lic. #2020001504

    Call Thomas
    LS

    Lynne Schlereth

    Preferred Rate

    NMLS #2378688

    Call Lynne

    O'Fallon, MO community profile

    Population
    96,497
    Median income
    $101,965
    Housing units
    36,476
    People per sq. mi.
    3,112.8
    Area
    31 sq. mi.

    Source: HJN community data

    O'Fallon housing market

    August 2026 · This period is still settling

    O'Fallon 12-month median sale price trend

    Homes that sold · County records, as of Aug 11, 2026

    Median sale price
    $358,904$247,046–$435,021 typical range
    Price per sq. ft.
    $157
    Sales
    46
    Paid in cash
    0.0%

    Homes on the market · MLS, as of Aug 31, 2026

    Median list price
    $416,000
    Homes for sale
    186
    Median days on market
    13 days

    Price trend · Assessor repeat sales, as of Aug 31, 2026

    Year-over-year
    -1.8%

    Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 29, 2026

    Median home size
    2,053 sq. ft.