Active Listings
268
⇩ 7.3% vs 289 last year
Data as of March 2026. Source: Realtor.com.
The O'fallon, MO real estate market currently shows 268 active listings, with 125 pending sales. Homes are averaging 36.8 days on the market before going under contract.
Inventory has tightened compared to last year, with 21 fewer active listings — creating more competition among buyers.
Homes are selling faster, averaging 36.8 days on market compared to 40.7 days last year.
The median listing price has risen 5.9% year-over-year, from $443,758 to $470,047.
Whether you are buying or selling in O'fallon, MO, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
Population: 98,870 · Density: 669.1/mi² · Median household income: $103,255
Typical home value: $278,959 · Homeownership: 81.6%