In which county is ZIP code 94603 located?

ZIP 94603 is listed under Alameda County, CA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 94603: Oakland, CA

ZIP: 94603

County: Alameda County

Coordinates: 37.74020, -122.17100

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Explore detailed information for ZIP code 94603 in Oakland, CA. We include verified county details for Alameda County plus key geographic references used for mapping and logistics.

Primary City	Oakland
ZIP Code	94603
County	Alameda County
State	CA
Latitude / Longitude	37.74020, -122.17100
ZIP Type	Standard
Time Zone	Pacific Time (PT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 94603 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 94603 are listed as 37.74020 / -122.17100, useful for GPS and service checks in and around Oakland, CA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 94603 for mail delivery and general location reference in Alameda County, CA.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Oakland.

Related ZIP Codes (Nearby)

Explore other postal codes near Oakland within CA.

Frequently Asked Questions

What is the primary city for ZIP code 94603?

The primary city for this ZIP code is Oakland, located in CA.

In which county is 94603 located?

ZIP code 94603 is situated within Alameda County, CA.

What are the coordinates for 94603?

The approximate center point is 37.74020 (Latitude) and -122.17100 (Longitude).

Is ZIP code 94603 active?

This page lists ZIP 94603 as Listed based on the latest refresh date shown above.

Does ZIP 94603 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08