Antioch is where my clients go when they need actual space — room for three kids, a big yard, maybe a second living area. It's the far end of Contra Costa but has eBART, a growing new-construction pipeline, and price tags below almost anywhere else in the county.
Two zips that feel like two different cities: 94509 is older central Antioch; 94531 is the new-construction side — Deer Valley, Lone Tree, the Eagle Ridge side. I work both.
With about 115,000 residents, Antioch is the third-largest city in Contra Costa but has a very different character from Concord or Walnut Creek. The waterfront Rivertown area is old-stock and affordable; the newer Deer Valley / Lone Tree side has production builders (Meritage, K. Hovnanian) putting up 4- and 5-bedroom new construction still under $800K in 2026.
The commute is real — 60+ minutes to San Francisco most days, though eBART cuts to Pittsburg/Bay Point at least buys you a seated ride. For a lot of my clients the trade-off is worth it: you're buying a 2,400 sqft house with a yard for the price of a 1,200 sqft condo in Walnut Creek.
Se habla español. Antioch has a large and growing Spanish-speaking community — probably the largest in the corner of the county I work. Every step in Spanish, no problem.
Click through to a dedicated page for each zip.
The same market looks different depending on what you're shopping for.
Neighborhood and school-district pages with price trends and active listings.

Antioch has become one of my most active cities, especially 94531. I've walked every Deer Valley phase and know which builders are flexible on finishes, which are padding the close costs, and which incentives are actually saving you money versus just moving it.
For buyers coming from Oakland, Richmond, or Stockton, Antioch is often the first place that makes the math work. I've helped a lot of first-time buyers close their first American home in this zip — and I know how much that means.