In which county is ZIP code 90740 located?

ZIP 90740 is listed under Orange County, CA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 90740: Seal Beach, CA

ZIP: 90740

County: Orange County

Coordinates: 33.76020, -118.08080

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Get a reliable snapshot of the Seal Beach, CA postal area 90740. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Seal Beach
ZIP Code	90740
County	Orange County
State	CA
Latitude / Longitude	33.76020, -118.08080
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 90740 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 90740 are listed as 33.76020 / -118.08080, useful for GPS and service checks in and around Seal Beach, CA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 90740 for mail delivery and general location reference in Orange County, CA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Seal Beach within CA.

Frequently Asked Questions

What is the primary city for ZIP code 90740?

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

In which county is 90740 located?

ZIP code 90740 is situated within Orange County, CA.

What are the coordinates for 90740?

The approximate center point is 33.76020 (Latitude) and -118.08080 (Longitude).

Is ZIP code 90740 active?

This page lists ZIP 90740 as Listed based on the latest refresh date shown above.

Does ZIP 90740 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