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 95623 El Dorado El Dorado County 209, 279, 350, 530, 916
CA 95624 Elk Grove Sacramento County 209, 279, 350, 916
CA 95625 Elmira Solano County 707
CA 95626 Elverta Sacramento County 279, 530, 916
CA 95627 Esparto Yolo County 530
CA 95628 Fair Oaks Sacramento County 279, 916
CA 95629 Fiddletown Amador County 209, 350, 530
CA 95630 Folsom Sacramento County 279, 530, 916
CA 95631 Foresthill Placer County 530
CA 95632 Galt Sacramento 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.