Current West Islip median home price: $679,872
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 March | $733,945 | $660,551 | $807,340 |
| 2026 April | $739,052 | $665,147 | $812,958 |
| 2026 May | $744,195 | $669,776 | $818,615 |
| 2026 June | $747,531 | $672,778 | $822,284 |
| 2026 July | $749,093 | $674,183 | $824,002 |
| 2026 August | $747,045 | $672,341 | $821,750 |
| 2026 September | $748,021 | $673,219 | $822,824 |
| 2026 October | $751,327 | $676,194 | $826,460 |
| 2026 November | $756,555 | $680,900 | $832,211 |
| 2026 December | $761,252 | $685,127 | $837,378 |