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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California ZIP Codes

Complete postal directory, details, and geographic map for the State of California.

State ZIP Code City County Area Codes
CA 92675 San Juan Capistrano Orange County 949
CA 92676 Silverado Orange County 657, 714, 949, 951
CA 92677 Laguna Niguel Orange County 949
CA 92678 Trabuco Canyon Orange County 657, 714, 949, 951
CA 92679 Trabuco Canyon Orange County 657, 714, 949, 951
CA 92683 Westminster Orange County 562, 657, 714
CA 92684 Westminster Orange County 714
CA 92685 Westminster Orange County 714
CA 92688 Rancho Santa Margarita Orange County 949
CA 92690 Mission Viejo Orange County 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.