Based on information submitted to the MLS GRID as of 2026-09-18 19:48:09 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.
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
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
-1.3%
Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 29, 2026
1
