Current Lake Saint Louis median home price: $402,621
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $439,792 | $395,813 | $483,771 |
| 2025 October | $443,055 | $398,749 | $487,360 |
| 2025 November | $446,342 | $401,708 | $490,976 |
| 2025 December | $449,654 | $404,688 | $494,619 |