Current Mercer Island median home price: $2,252,719
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2028 January | $2,462,787 | $2,216,508 | $2,709,065 |
| 2028 February | $2,444,878 | $2,200,390 | $2,689,366 |
| 2028 March | $2,427,099 | $2,184,389 | $2,669,809 |
| 2028 April | $2,418,849 | $2,176,964 | $2,660,733 |
| 2028 May | $2,427,920 | $2,185,128 | $2,670,712 |
| 2028 June | $2,443,996 | $2,199,597 | $2,688,396 |
| 2028 July | $2,460,855 | $2,214,769 | $2,706,940 |
| 2028 August | $2,475,061 | $2,227,555 | $2,722,568 |
| 2028 September | $2,489,179 | $2,240,261 | $2,738,096 |
| 2028 October | $2,496,755 | $2,247,079 | $2,746,430 |
| 2028 November | $2,496,319 | $2,246,687 | $2,745,951 |
| 2028 December | $2,487,413 | $2,238,671 | $2,736,154 |