Current Castro Valley median home price: $1,140,774
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 March | $1,129,815 | $1,016,833 | $1,242,796 |
| 2026 April | $1,137,991 | $1,024,192 | $1,251,790 |
| 2026 May | $1,146,226 | $1,031,603 | $1,260,849 |
| 2026 June | $1,154,521 | $1,039,069 | $1,269,973 |
| 2026 July | $1,162,876 | $1,046,588 | $1,279,163 |
| 2026 August | $1,166,582 | $1,049,923 | $1,283,240 |
| 2026 September | $1,169,171 | $1,052,254 | $1,286,088 |
| 2026 October | $1,175,718 | $1,058,146 | $1,293,290 |
| 2026 November | $1,184,226 | $1,065,803 | $1,302,649 |
| 2026 December | $1,192,796 | $1,073,516 | $1,312,075 |