Current Grayslake median home price: $332,511
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $360,270 | $324,243 | $396,297 |
| 2025 October | $362,458 | $326,212 | $398,704 |
| 2025 November | $364,659 | $328,193 | $401,125 |
| 2025 December | $366,873 | $330,186 | $403,560 |