ZIP Code 94603
94603 is one of California's ZIP codes, delivering to addresses in Oakland, Alameda County.
- City
- Oakland
- County
- Alameda County
- State
- California
- Prefix
- 946xx
Where this code sits
94603 is part of the 946xx range, the group of codes handled by one mail processing centre. Oakland is served by 26 ZIP codes in total; the full list, with the county each falls in, is on the Oakland page.
Oakland California ZIP codes →
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 94603 delivers to without sharing its boundary.
ZIP codes nearest 94603
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 94621 | 1.5 mi | Oakland, CA |
| ZIP code 94577 | 1.5 mi | San Leandro, CA |
| ZIP code 94605 | 1.7 mi | Oakland, CA |
| ZIP code 94614 | 2.0 mi | Oakland, CA |
| ZIP code 94613 | 3.0 mi | Oakland, CA |
| ZIP code 94619 | 3.4 mi | Oakland, CA |
| ZIP code 94578 | 3.7 mi | San Leandro, CA |
| ZIP code 94579 | 3.7 mi | San Leandro, CA |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 94603. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.