Housing in O'Fallon, IL
Home values, rent, ownership rates, and housing market data
Housing Market Snapshot
Source: Redfin — January 2026Median Sale Price
$337,500
Median List Price
$325,000
Price Per Sq Ft
$145
Days on Market
45
Active Inventory
72
Months of Supply
3.3
Seller's market
Price Trends
Source: RedfinMarket Competitiveness
Source: RedfinSold Above List
18.2%
Off Market in 2 Weeks
46.7%
Sale-to-List Ratio
98.0%
Buyer's market
Market Activity
Source: RedfinHomes Sold
22
New Listings
35
Price Per Square Foot
Source: RedfinMedian Sale $/SF
$145
Median List $/SF
$154
O'Fallon vs Similar Cities
Source: Census ACS / Redfin (2023)Compared to cities with 25,000 - 50,000 residents. O'Fallon is highlighted.
Median Home Value
Median Rent
Median Price Per Sq Ft
Rent Burden
Census Housing Data
Source: U.S. Census Bureau ACS (2023)Median Home Value
$274,100
Median Rent
$1,312
Total Housing Units
13,152
Vacancy Rate
5.3%
Owner Occupied
70.9%
Renter Occupied
29.1%
Median Property Tax
$5,759
per year
Monthly Cost (w/ Mortgage)
$1,794
Housing Types
The current median sale price in O'Fallon, IL is $337,500 according to Redfin data. Homes spend a median of 45 days on the market. 18.2% of homes sold above asking price. The market has 3.3 months of supply. The median price per square foot is $145. The median rent is $1,312 per month (Census ACS). About 70.9% of housing units are owner-occupied. The median year homes were built is 1995. There are 13,152 total housing units.