Current Crystal Lake median home price: $348,813
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $379,551 | $341,596 | $417,507 |
| 2025 October | $381,849 | $343,664 | $420,034 |
| 2025 November | $384,161 | $345,745 | $422,577 |
| 2025 December | $386,486 | $347,838 | $425,135 |