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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State directory

Maryland ZIP Codes

Complete postal directory, details, and geographic map for the State of Maryland.

State ZIP Code City County Area Codes
MD 21663 Saint Michaels Talbot County 410, 443, 667
MD 21664 Secretary Dorchester County 410, 443, 667
MD 21665 Sherwood Talbot County 410, 443, 667
MD 21666 Stevensville Queen Anne's County 410, 443, 667
MD 21667 Still Pond Kent County 410, 443, 667
MD 21668 Sudlersville Queen Anne's County 302, 410, 443, 667
MD 21669 Taylors Island Dorchester County 410, 443, 667
MD 21670 Templeville Caroline County 410
MD 21671 Tilghman Talbot County 410, 443, 667
MD 21672 Toddville Dorchester County 410, 443, 667
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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.