Current West Islip median home price: $679,872
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $730,246 | $657,222 | $803,271 |
| 2025 October | $735,304 | $661,774 | $808,835 |
| 2025 November | $740,397 | $666,358 | $814,437 |
| 2025 December | $745,526 | $670,973 | $820,078 |