Current Central Islip median home price: $527,857
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 March | $565,610 | $509,049 | $622,171 |
| 2026 April | $568,664 | $511,798 | $625,531 |
| 2026 May | $571,735 | $514,561 | $628,908 |
| 2026 June | $574,822 | $517,340 | $632,304 |
| 2026 July | $577,926 | $520,133 | $635,719 |
| 2026 August | $579,648 | $521,683 | $637,613 |
| 2026 September | $581,042 | $522,938 | $639,146 |
| 2026 October | $582,708 | $524,437 | $640,979 |
| 2026 November | $585,013 | $526,512 | $643,514 |
| 2026 December | $587,596 | $528,837 | $646,356 |