Current Deer Isle median home price: $407,175
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $415,148 | $373,633 | $456,663 |
| 2025 October | $418,329 | $376,496 | $460,162 |
| 2025 November | $421,534 | $379,381 | $463,688 |
| 2025 December | $424,764 | $382,288 | $467,240 |