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.

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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 92674 San Clemente 949
Orange County CA 92675 San Juan Capistrano 949
Orange County CA 92676 Silverado 657, 714, 949, 951
Orange County CA 92677 Laguna Niguel 949
Orange County CA 92678 Trabuco Canyon 657, 714, 949, 951
Orange County CA 92679 Trabuco Canyon 657, 714, 949, 951
Orange County CA 92683 Westminster 562, 657, 714
Orange County CA 92684 Westminster 714
Orange County CA 92685 Westminster 714
Orange County CA 92688 Rancho Santa Margarita 949
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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.