Current Alton median home price: $557,834
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 January | $622,428 | $560,185 | $684,670 |
| 2026 February | $628,346 | $565,511 | $691,180 |
| 2026 March | $634,320 | $570,888 | $697,752 |
| 2026 April | $640,351 | $576,316 | $704,386 |
| 2026 May | $646,440 | $581,796 | $711,084 |
| 2026 June | $652,586 | $587,328 | $717,845 |
| 2026 July | $658,516 | $592,665 | $724,368 |
| 2026 August | $659,471 | $593,524 | $725,418 |
| 2026 September | $658,855 | $592,970 | $724,741 |
| 2026 October | $659,948 | $593,953 | $725,943 |
| 2026 November | $664,428 | $597,985 | $730,870 |
| 2026 December | $670,745 | $603,670 | $737,819 |