Is Antioch, CA 94509 a buyer’s or seller’s market?

The Antioch housing market right now

In the three months ending August 31, 2026, 62% of homes in Antioch, CA 94509 sold above their list price, the typical home went under contract in 18 days and there were 2.1 months of supply. Under four months of supply means sellers have the edge: expect competition for well-priced homes. That’s based on 148 home sales.

Compared with the same period a year earlier, the share selling over asking rose from 44%, homes sold faster (23 days then) and the median sale price held steady to $539,766. Overall, Antioch is more competitive than a year ago, so tougher for buyers.

Within Contra Costa County, homes here sell faster than in 69% of the county’s ZIP codes, and sell more often over asking than in 90%. On our competition score, Antioch ranks #67 of 1,069 CA ZIP codes with enough sales (score 90 out of 100).

Nearby, buyers who want less competition could look at Port Costa 94569 (0% sold over asking) or Discovery Bay 94505 (17% sold over asking), while Diablo 94528 (100% sold over asking) and El Cerrito 94530 (85% sold over asking) are even more competitive.