Active Listings
344
⇧ 3% vs 334 last year
Data as of June 2026. Source: Realtor.com.
The O'fallon, MO real estate market currently shows 344 active listings, with 161 pending sales. Homes are averaging 31.4 days on the market before going under contract.
Inventory has increased compared to last year, with 10 more homes available — giving buyers more choice.
Homes are selling faster, averaging 31.4 days on market compared to 34.3 days last year.
The median listing price has fallen 0.6% year-over-year, from $453,336 to $450,484.
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%