In which county is ZIP code 94538 located?

ZIP 94538 is listed under Alameda County, CA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 94538: Fremont, CA

ZIP: 94538

County: Alameda County

Coordinates: 37.53080, -121.97120

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Explore detailed information for ZIP code 94538 in Fremont, CA. We include verified county details for Alameda County plus key geographic references used for mapping and logistics.

Primary City	Fremont
ZIP Code	94538
County	Alameda County
State	CA
Latitude / Longitude	37.53080, -121.97120
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 94538 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 94538 is commonly represented around 37.53080, -121.97120. These coordinates help identify the general area within Alameda County, CA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 94538 for mail delivery and general location reference in Alameda County, CA.

Some addresses near Fremont may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Fremont within CA.

Frequently Asked Questions

What is the primary city for ZIP code 94538?

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

In which county is 94538 located?

ZIP code 94538 is situated within Alameda County, CA.

What are the coordinates for 94538?

The approximate center point is 37.53080 (Latitude) and -121.97120 (Longitude).

Is ZIP code 94538 active?

This page lists ZIP 94538 as Listed based on the latest refresh date shown above.

Does ZIP 94538 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