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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California ZIP Codes

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

State ZIP Code City County Area Codes
CA 96023 Dorris Siskiyou County 458, 530, 541
CA 96024 Douglas City Trinity County 530
CA 96025 Dunsmuir Siskiyou County 530
CA 96027 Etna Siskiyou County 530
CA 96028 Fall River Mills Shasta County 530
CA 96029 Flournoy Tehama County 530
CA 96031 Forks Of Salmon Siskiyou County 530
CA 96032 Fort Jones Siskiyou County 530
CA 96033 French Gulch Shasta County 530
CA 96034 Gazelle Siskiyou 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.