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 95677 Rocklin Placer County 279, 916
CA 95678 Roseville Placer County 279, 916
CA 95679 Rumsey Yolo County 530
CA 95680 Ryde Sacramento County 279, 916
CA 95681 Sheridan Placer County 279, 530, 916
CA 95682 Shingle Springs El Dorado County 209, 279, 350, 530, 916
CA 95683 Sloughhouse Sacramento County 209, 279, 350, 916
CA 95684 Somerset El Dorado County 209, 350, 530
CA 95685 Sutter Creek Amador County 209, 350
CA 95686 Thornton San Joaquin County 209, 279, 350, 916
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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.