Current Alton median home price: $187,710
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 March | $193,621 | $174,259 | $212,983 |
| 2026 April | $194,585 | $175,127 | $214,044 |
| 2026 May | $195,554 | $175,999 | $215,110 |
| 2026 June | $196,528 | $176,875 | $216,181 |
| 2026 July | $197,507 | $177,756 | $217,258 |
| 2026 August | $197,067 | $177,361 | $216,774 |
| 2026 September | $197,286 | $177,557 | $217,015 |
| 2026 October | $198,269 | $178,442 | $218,095 |
| 2026 November | $199,256 | $179,330 | $219,182 |
| 2026 December | $200,248 | $180,223 | $220,273 |