ZIP Code 90603: Whittier, CA
County: Los Angeles County
Coordinates: 33.94320, -117.99270
ZIP Type: Standard
Time Zone: Pacific Time (PT)
Explore detailed information for ZIP code 90603 in Whittier, CA. We include verified county details for Los Angeles County plus key geographic references used for mapping and logistics.
| Primary City | Whittier |
|---|
| ZIP Code | 90603 |
|---|
| County | Los Angeles County |
|---|
| State | CA |
|---|
| Latitude / Longitude | 33.94320, -117.99270 |
|---|
| ZIP Type | Standard |
|---|
| Time Zone | Pacific Time (PT) |
|---|
| Data Updated | 2026-01-08 |
|---|
Advertisement
Maps & Useful Links
Open in Maps:
Google Maps ·
OpenStreetMap
These links show the approximate center point for ZIP 90603 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 90603 is approximately 33.94320 (latitude) and -117.99270 (longitude). This location sits within Los Angeles County, contributing to regional planning across CA.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 90603 for mail delivery and general location reference in
Los Angeles County,
CA.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Whittier.
Related ZIP Codes (Nearby)
Explore other postal codes near Whittier within CA.
Advertisement
Frequently Asked Questions
What is the primary city for ZIP code 90603?
The primary city for this ZIP code is Whittier, located in CA.
In which county is 90603 located?
ZIP code 90603 is situated within Los Angeles County, CA.
What are the coordinates for 90603?
The approximate center point is 33.94320 (Latitude) and -117.99270 (Longitude).
Is ZIP code 90603 active?
This page lists ZIP 90603 as Listed based on the latest refresh date shown above.
Does ZIP 90603 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
Advertisement
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