Current O Fallon median home price: $357,952
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $376,915 | $339,223 | $414,606 |
| 2025 October | $378,897 | $341,007 | $416,786 |
| 2025 November | $380,889 | $342,800 | $418,978 |
| 2025 December | $382,892 | $344,603 | $421,182 |