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 96073 Palo Cedro Shasta County 530
CA 96074 Paskenta Tehama County 530
CA 96075 Paynes Creek Tehama County 530
CA 96076 Platina Trinity County 530
CA 96078 Proberta Tehama County 530
CA 96079 Shasta Lake Shasta County 530
CA 96080 Red Bluff Tehama County 530
CA 96084 Round Mountain Shasta County 530
CA 96085 Scott Bar Siskiyou County 530
CA 96086 Seiad Valley Siskiyou County 458, 530, 541
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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.