Current Mountainside median home price: $940,407
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $1,049,671 | $944,704 | $1,154,639 |
| 2025 October | $1,057,696 | $951,926 | $1,163,465 |
| 2025 November | $1,065,781 | $959,203 | $1,172,359 |
| 2025 December | $1,073,929 | $966,536 | $1,181,322 |