Real Estate Data API

O'fallon MO

761 active listings out of 36K total properties we track across 23 O'fallon ZIPs — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

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Active
761
Median
$400K
±0%
Sold Sep
95
+43.9%
Tracked
36K
Zoomed out

While you're here, take in the bigger picture — maps below show Missouri (statewide), not just O'fallon. Same company, same dataset, different resolution.

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Inventory breakdown

Distribution of the 761 currently-active listings in O'fallon, MO. Full dataset covers 36K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 181 (24.5%)
$300K–$500K 375 (50.8%)
$500K–$750K 137 (18.6%)
$750K–$1M 24 (3.3%)
$1M–$2M 13 (1.8%)
$2M+ 8 (1.1%)
Active by bedroom count
Studio/1 bd 43
2 bd 162
3 bd 334
4 bd 178
5+ bd 35
Active by property type
Single Family 611 (80.3%)
Condo 47 (6.2%)
Lot 34 (4.5%)
Townhouse 25 (3.3%)
Other 22 (2.9%)
Manufactured 18 (2.4%)

ZIP codes in O'fallon

Drill into any ZIP for hex-level breakdowns.

63366
→
Active
471
Tracked
22K
63368
→
Active
190
Tracked
13K
65470
→
Active
37
Tracked
780
63376
→
Active
6
Tracked
233
63367
→
Active
17
Tracked
152
63385
→
Active
37
Tracked
133
63304
→
Active
0
Tracked
8
63301
→
Active
1
Tracked
6
63303
→
Active
1
Tracked
4
65536
→
Active
0
Tracked
3
65202
→
Active
0
Tracked
2
65543
→
Active
0
Tracked
2

Nearby cities

Other Missouri cities within driving distance.

Dardenne Prairie
1.7 mi away
Active: 94
Lake Saint Louis
2 mi away
Active: 348
Cottleville
5.6 mi away
Active: 39
Wentzville
6.5 mi away
Active: 912
Weldon Spring
6.8 mi away
Active: 48
Defiance
6.9 mi away
Active: 87
Saint Peters
7.4 mi away
Active: 481
Peters
7.7 mi away
Active: 5
For Developers

Get O'fallon, MO data in your app

curl
request 
GET https://api.straply.com/v1/markets/city/o-fallon-mo
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "city": "o-fallon-mo",
  "total_tracked": 35546,
  "active": 761,
  "median_list": 400000
}
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O'fallon, MO real estate: market summary

As of November 2026, Straply tracks 35,546 homes in O'fallon, MO, with 761 active for sale at a median list price of $400,000 (~$201/sq ft). Notably, most homes were built in the 2000s.

Median list price
$400,000
Median $/sq ft
$201
Active listings
761
Properties tracked
35,546

Frequently asked: O'fallon, MO real estate

What is the median home price in O'fallon?

The median list price in O'fallon, MO is $400,000 (about $201 per square foot), based on 761 active listings tracked by Straply as of November 2026.

What price range are homes in O'fallon?

Active listings in O'fallon, MO concentrate in: 51% $300k–$500k and 24% under $300k.

How many homes are for sale in O'fallon?

Straply is tracking 761 active listings in O'fallon, MO out of 35,546 properties on record as of November 2026.

How old are the homes in O'fallon?

Most homes in O'fallon, MO were built in the 2000s. About 87% were built after 1980. The newest tracked home dates to 2026.

What types of homes are in O'fallon?

O'fallon, MO is mostly single-family homes (80% of listings). Also common: condos 6%.

How many bedrooms do homes in O'fallon typically have?

The most common size in O'fallon, MO is 3 bd.

What are the most active ZIP codes in O'fallon?

The ZIP codes with the most active listings in O'fallon, MO are 63366, 63368, 65470, 63376, 63367.

What areas are near O'fallon?

Nearby markets Straply also tracks include Dardenne Prairie, Lake Saint Louis, Cottleville, Wentzville.

Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.