Current Castro Valley median home price: $1,140,774
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $1,130,316 | $1,017,284 | $1,243,347 |
| 2025 October | $1,139,000 | $1,025,100 | $1,252,900 |
| 2025 November | $1,147,751 | $1,032,975 | $1,262,526 |
| 2025 December | $1,156,569 | $1,040,912 | $1,272,225 |