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 96061 Mill Creek Tehama County 530
CA 96062 Millville Shasta County 530
CA 96063 Mineral Tehama County 530
CA 96064 Montague Siskiyou County 458, 530, 541
CA 96065 Montgomery Creek Shasta County 530
CA 96067 Mount Shasta Siskiyou County 530
CA 96068 Nubieber Lassen County 530
CA 96069 Oak Run Shasta County 530
CA 96070 Obrien Shasta County 530
CA 96071 Old Station Shasta County 530
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Geographic Map of California

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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.