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

Delaware ZIP Codes

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

State ZIP Code City County Area Codes
DE 19930 Bethany Beach Sussex County 302
DE 19931 Bethel Sussex County 302
DE 19933 Bridgeville Sussex County 302, 410, 443, 667
DE 19934 Camden Wyoming Kent County 302, 410, 443, 667
DE 19936 Cheswold Kent County 302
DE 19938 Clayton Kent County 302, 410, 443, 667
DE 19939 Dagsboro Sussex County 302
DE 19940 Delmar Sussex County 302, 410, 443, 667
DE 19941 Ellendale Sussex County 302
DE 19943 Felton Kent County 302, 410, 443, 667
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Geographic Map of Delaware

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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.