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
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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 92690 Mission Viejo 949
Orange County CA 92691 Mission Viejo 949
Orange County CA 92692 Mission Viejo 949
Orange County CA 92693 San Juan Capistrano 949
Orange County CA 92694 Ladera Ranch 442, 760, 949, 951
Orange County CA 92697 Irvine 949
Orange County CA 92698 Aliso Viejo 949
Orange County CA 92701 Santa Ana 657, 714
Orange County CA 92702 Santa Ana 714
Orange County CA 92703 Santa Ana 657, 714
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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.