Current Water Mill median home price: $4,305,597
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $4,587,327 | $4,128,594 | $5,046,060 |
| 2025 October | $4,617,960 | $4,156,164 | $5,079,756 |
| 2025 November | $4,648,797 | $4,183,917 | $5,113,677 |
| 2025 December | $4,679,840 | $4,211,856 | $5,147,824 |