Current Alton median home price: $557,834
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $599,307 | $539,377 | $659,238 |
| 2025 October | $605,006 | $544,505 | $665,506 |
| 2025 November | $610,758 | $549,682 | $671,834 |
| 2025 December | $616,565 | $554,909 | $678,222 |