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 93944 Monterey Monterey County 831
CA 93950 Pacific Grove Monterey County 831
CA 93953 Pebble Beach Monterey County 831
CA 93954 San Lucas Monterey County 805, 820, 831
CA 93955 Seaside Monterey County 831
CA 93960 Soledad Monterey County 831
CA 93962 Spreckels Monterey County 831
CA 94002 Belmont San Mateo County 650
CA 94005 Brisbane San Mateo County 415, 628, 650
CA 94010 Burlingame San Mateo County 650
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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.