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 95687 Vacaville Solano County 707
CA 95688 Vacaville Solano County 530, 707
CA 95689 Volcano Amador County 209, 350, 530
CA 95690 Walnut Grove Sacramento County 209, 279, 350, 707, 916
CA 95691 West Sacramento Yolo County 279, 530, 916
CA 95692 Wheatland Yuba County 279, 530, 916
CA 95693 Wilton Sacramento County 209, 279, 350, 916
CA 95694 Winters Yolo County 530, 707
CA 95695 Woodland Yolo County 530
CA 95696 Vacaville Solano County 707
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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.