Current West Islip median home price: $679,872
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 January | $750,690 | $675,621 | $825,759 |
| 2026 February | $755,889 | $680,301 | $831,478 |
| 2026 March | $761,125 | $685,013 | $837,238 |
| 2026 April | $766,397 | $689,757 | $843,037 |
| 2026 May | $771,706 | $694,535 | $848,876 |
| 2026 June | $775,165 | $697,648 | $852,681 |
| 2026 July | $776,784 | $699,106 | $854,463 |
| 2026 August | $774,661 | $697,195 | $852,127 |
| 2026 September | $775,674 | $698,106 | $853,241 |
| 2026 October | $779,101 | $701,191 | $857,011 |
| 2026 November | $784,498 | $706,048 | $862,948 |
| 2026 December | $789,369 | $710,432 | $868,306 |