Current Union City median home price: $527,550
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $575,844 | $518,260 | $633,429 |
| 2025 October | $578,476 | $520,629 | $636,324 |
| 2025 November | $581,120 | $523,008 | $639,232 |
| 2025 December | $583,776 | $525,398 | $642,154 |