Current Grain Valley median home price: $323,129
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 January | $335,806 | $302,225 | $369,386 |
| 2026 February | $337,444 | $303,699 | $371,188 |
| 2026 March | $339,090 | $305,181 | $372,999 |
| 2026 April | $340,744 | $306,670 | $374,819 |
| 2026 May | $342,407 | $308,166 | $376,647 |
| 2026 June | $344,077 | $309,669 | $378,485 |
| 2026 July | $345,755 | $311,180 | $380,331 |
| 2026 August | $347,049 | $312,344 | $381,754 |
| 2026 September | $348,286 | $313,458 | $383,115 |
| 2026 October | $349,985 | $314,987 | $384,984 |
| 2026 November | $351,693 | $316,523 | $386,862 |
| 2026 December | $353,408 | $318,068 | $388,749 |