Concord California Area Code
One area code covers Concord: 925.
The code covering Concord
| Area code | Primarily serves | In service |
|---|---|---|
| 925 | Oakland | 1998 |
Scope the codes matched to Concord. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated . Overlay relationships come from the numbering-plan authority; the place match is computed.
Which part of town has which code
Concord has a single code, so there is nothing to divide — every local line carries 925.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Concord’s 8 ZIP codes do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.
Concord California ZIP codes →
Nearby places with different codes
These are the closest places to Concord whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.
| City | Distance | Their area codes |
|---|---|---|
| Walnut Creek California area codes | 5.3 mi | 341, 510, 925 |
| Pittsburg California area codes | 6.5 mi | 341, 510, 925 |
| Alamo California area codes | 8.1 mi | 341, 510, 925 |
| Benicia California area codes | 11 mi | 369, 707, 925 |
| Danville California area codes | 11 mi | 341, 510, 925 |
| Antioch California area codes | 11 mi | 341, 510, 925 |
| San Ramon California area codes | 15 mi | 341, 415, 510, 628, 925 |
| Hercules California area codes | 16 mi | 341, 510 |
Straight-line distance between place reference points, not driving distance.