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 96110 Eagleville Modoc County 530, 775
CA 96111 Floriston Nevada County 530
CA 96112 Fort Bidwell Modoc County 530, 775
CA 96113 Herlong Lassen County 530
CA 96114 Janesville Lassen County 530
CA 96115 Lake City Modoc County 530, 775
CA 96116 Likely Modoc County 530
CA 96117 Litchfield Lassen County 530, 775
CA 96118 Loyalton Sierra County 530
CA 96119 Madeline Lassen County 530
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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.