U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
County directory

Orange County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Orange County.

County State ZIP Code City Area Codes
Orange County CA 92620 Irvine 657, 714, 949
Orange County CA 92623 Irvine 714
Orange County CA 92624 Capistrano Beach 949
Orange County CA 92625 Corona Del Mar 949
Orange County CA 92626 Costa Mesa 657, 714, 949
Orange County CA 92627 Costa Mesa 657, 714, 949
Orange County CA 92628 Costa Mesa 714
Orange County CA 92629 Dana Point 949
Orange County CA 92630 Lake Forest 949
Orange County CA 92637 Laguna Woods 949
Page 4 of 35

Geographic Map of Orange County

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.