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 95742 Rancho Cordova Sacramento County 279, 916
CA 95746 Granite Bay Placer County 279, 530, 916
CA 95747 Roseville Placer County 279, 916
CA 95757 Elk Grove Sacramento County 209, 279, 350, 916
CA 95758 Elk Grove Sacramento County 279, 916
CA 95759 Elk Grove Sacramento County 916
CA 95762 El Dorado Hills El Dorado County 279, 530, 916
CA 95763 Folsom Sacramento County 916
CA 95765 Rocklin Placer County 279, 916
CA 95776 Woodland Yolo County 279, 530, 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.