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 95602 Auburn Placer County 530
CA 95603 Auburn Placer County 279, 530, 916
CA 95604 Auburn Placer County 530
CA 95605 West Sacramento Yolo County 279, 916
CA 95606 Brooks Yolo County 530, 707
CA 95607 Capay Yolo County 530, 707
CA 95608 Carmichael Sacramento County 279, 916
CA 95609 Carmichael Sacramento County 916
CA 95610 Citrus Heights Sacramento County 279, 916
CA 95611 Citrus Heights Sacramento County 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.