ZIP Code 92603

92603 is one of California's ZIP codes, delivering to addresses in Irvine, Orange County.

City: Irvine
County: Orange County
State: California
Prefix: 926xx

Where this code sits

92603 is part of the 926xx range, the group of codes handled by one mail processing centre. Irvine is served by 13 ZIP codes in total; the full list, with the county each falls in, is on the Irvine page.

Irvine California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 92603 delivers to without sharing its boundary.

ZIP codes nearest 92603

The ZIP codes whose reference points sit closest to 92603.
ZIP code	Distance	Delivers to
ZIP code 92617	3.0 mi	Irvine, CA
ZIP code 92697	3.1 mi	Irvine, CA
ZIP code 92616	3.1 mi	Irvine, CA
ZIP code 92657	3.1 mi	Newport Coast, CA
ZIP code 92612	3.1 mi	Irvine, CA
ZIP code 92619	3.6 mi	Irvine, CA
ZIP code 92698	4.0 mi	Aliso Viejo, CA
ZIP code 92637	4.1 mi	Laguna Woods, 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.

Each point is the reference point for 92603, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 92603. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.