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Before you start looking
The buying timeline

Afford it

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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

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Rentals

9 listings

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Homes for Sale in St. John, MO

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9 listings

Homes for Sale in St. John, MO

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9 Listings

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Homes for Sale in St. John, MO

9 Listings

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #2020001504

Call Thomas

24Active

$169,900

4 bd · 1 ba · 1,288 sqft

8454 Engler Avenue, St John, MO

Dustin Hoog · EXP Realty, LLC

25Active

$190,000

2 bd · 1 ba · 988 sqft

8718 Mavis Place, St John, MO

Amanda Vendt · Coldwell Banker Realty - Gundaker

25Active

$149,900

3 bd · 2 ba · 962 sqft

8622 North Avenue, St John, MO

Ramona Galloway · J & H Properties LLC

Price Reduced21Active

$165,000

6 bd · 3 ba · 1,953 sqft

8209 Saint Charles Lane, St John, MO

Elaine Marsden · Coldwell Banker Premier Group

Price Reduced33Active

$179,900

3 bd · 1 ba · 840 sqft

3625 Boswell Avenue, St John, MO

Shannon Rivers · Worth Clark Realty

1Active

$105,000

2 bd · 1 ba · 912 sqft

3518 Calvert Avenue, St John, MO

Robin McBroom · Image Realty

31Active

$250,000

3 bd · 2 ba · 1,335 sqft

9091 Patrick Drive, St John, MO

Anna Shiao · Saint Louis Real Estate LLC

Price Reduced18Active

$117,500

3 bd · 1 ba · 660 sqft

3627 Marshall Avenue, St John, MO

Ryan Jackson · Nettwork Global

24Active

$225,000

2 bd · 1 ba · 1,100 sqft

2970 Walton Road, St John, MO

Mark Kim · Koda Realty

Listing data & MLS disclosures

MARIS MLS: Based on information submitted to the MLS GRID as of 2026-10-26 14:38:39 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.

St. John housing market

July 2026 · This period is still settling

Selling at 100.0% of asking price

Sales here are closing essentially at asking. MLS · 11 sales · as of Jul 31, 2026

Homes on the market · MLS, as of Jul 21, 2026–Jul 31, 2026

Median list price: $145,000
Homes for sale: 15
Median days on market: 22 days

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 14, 2026

Median home size: 1,032 sq. ft.

St. John, MO community profile

Population: 6,582
Median income: $54,126
Housing units: 2,945
People per sq. mi.: 4,701.4
Area: 1.4 sq. mi.

Source: HJN community data

Nearby areas

ZIP codes

63136 (227)
63031 (201)
63033 (148)
63301 (139)
63121 (121)
63376 (117)
63021 (116)
63137 (116)

Cities

St. Louis (1,779)
Florissant (336)
St. Charles (250)
St. Peters (123)
O'Fallon (118)
Ballwin (110)
Chesterfield (106)
Wildwood (65)

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

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.

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #2020001504

Call Thomas

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #2020001504

Call Thomas

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #2020001504

Call Thomas

Listing data & MLS disclosures

MARIS MLS: Based on information submitted to the MLS GRID as of 2026-10-26 14:38:39 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.

St. John, MO Homes for Sale | Realty.com

Nearby areas

ZIP codes

63136 (227)
63031 (201)
63033 (148)
63301 (139)
63121 (121)
63376 (117)
63021 (116)
63137 (116)

Cities

St. Louis (1,779)
Florissant (336)
St. Charles (250)
St. Peters (123)
O'Fallon (118)
Ballwin (110)
Chesterfield (106)
Wildwood (65)

St. John, MO community profile

Population: 6,582
Median income: $54,126
Housing units: 2,945
People per sq. mi.: 4,701.4
Area: 1.4 sq. mi.

Source: HJN community data

St. John housing market

July 2026 · This period is still settling

Selling at 100.0% of asking price

Sales here are closing essentially at asking. MLS · 11 sales · as of Jul 31, 2026

Homes on the market · MLS, as of Jul 21, 2026–Jul 31, 2026

Median list price: $145,000
Homes for sale: 15
Median days on market: 22 days

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 14, 2026

Median home size: 1,032 sq. ft.