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
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State directory

California ZIP Codes

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

State ZIP Code City County Area Codes
CA 96087 Shasta Shasta County 530
CA 96088 Shingletown Shasta County 530
CA 96089 Shasta Lake Shasta County 530
CA 96090 Tehama Tehama County 530
CA 96091 Trinity Center Trinity County 530
CA 96092 Vina Tehama County 530
CA 96093 Weaverville Trinity County 530
CA 96094 Weed Siskiyou County 530
CA 96095 Whiskeytown Shasta County 530
CA 96096 Whitmore Shasta County 530
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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.