On July 1, 1963, the United States Post Office introduced the Zone Improvement Plan, or ZIP Code.ZIP codes are five-digit numbers that designate an area for the United States Postal Service.
ZIP is an acronym for Zone Improvement Plan.
A ZIP Code is a 5-digit code that identifies a specific geographic delivery area.
ZIP Codes can represent an area within a state, an area that crosses state boundaries, or a single building or company that has a very high mail volume.
See all Zip Codes by State and principal US territories
ZIP Codes in Delaware listing, with city state and county
Cities listed with each zip code are the major cities in Delaware
| Zip code | City / State | County | Iso | Area code | |
|---|---|---|---|---|---|
| 19701 | Bear (Delaware) | New Castle | US-DE | 302 | |
| 19702 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19703 | Claymont (Delaware) | New Castle | US-DE | 302 | |
| 19706 | Delaware City (Delaware) | New Castle | US-DE | 302 | |
| 19707 | Hockessin (Delaware) | New Castle | US-DE | 302 | |
| 19708 | Kirkwood (Delaware) | New Castle | US-DE | 302 | |
| 19709 | Middletown (Delaware) | New Castle | US-DE | 302 | |
| 19710 | Montchanin (Delaware) | New Castle | US-DE | 302 | |
| 19711 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19712 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19713 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19714 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19715 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19716 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19717 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19718 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19720 | New Castle (Delaware) | New Castle | US-DE | 302 | |
| 19721 | New Castle (Delaware) | New Castle | US-DE | 302 | |
| 19725 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19726 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19730 | Odessa (Delaware) | New Castle | US-DE | 302 | |
| 19731 | Port Penn (Delaware) | New Castle | US-DE | 302 | |
| 19732 | Rockland (Delaware) | New Castle | US-DE | 302 | |
| 19733 | Saint Georges (Delaware) | New Castle | US-DE | 302 | |
| 19734 | Townsend (Delaware) | New Castle | US-DE | 302 | |
| 19735 | Winterthur (Delaware) | New Castle | US-DE | 302 | |
| 19736 | Yorklyn (Delaware) | New Castle | US-DE | 302 | |
| 19801 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19802 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19803 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19804 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19805 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19806 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19807 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19808 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19809 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19810 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19850 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19880 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19884 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19885 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19886 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19887 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19889 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19890 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19891 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19892 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19893 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19894 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19895 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19896 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19897 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19898 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19899 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19901 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19902 | Dover Afb (Delaware) | Kent | US-DE | 302 | |
| 19903 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19904 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19905 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19906 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19930 | Bethany Beach (Delaware) | Sussex | US-DE | 302 | |
| 19931 | Bethel (Delaware) | Sussex | US-DE | 302 | |
| 19933 | Bridgeville (Delaware) | Sussex | US-DE | 302 | |
| 19934 | Camden Wyoming (Delaware) | Kent | US-DE | 302 | |
| 19936 | Cheswold (Delaware) | Kent | US-DE | 302 | |
| 19938 | Clayton (Delaware) | Kent | US-DE | 302 | |
| 19939 | Dagsboro (Delaware) | Sussex | US-DE | 302 | |
| 19940 | Delmar (Delaware) | Sussex | US-DE | 302 | |
| 19941 | Ellendale (Delaware) | Sussex | US-DE | 302 | |
| 19943 | Felton (Delaware) | Kent | US-DE | 302 | |
| 19944 | Fenwick Island (Delaware) | Sussex | US-DE | 302 | |
| 19945 | Frankford (Delaware) | Sussex | US-DE | 302 | |
| 19946 | Frederica (Delaware) | Kent | US-DE | 302 | |
| 19947 | Georgetown (Delaware) | Sussex | US-DE | 302 | |
| 19950 | Greenwood (Delaware) | Sussex | US-DE | 302 | |
| 19951 | Harbeson (Delaware) | Sussex | US-DE | 302 | |
| 19952 | Harrington (Delaware) | Kent | US-DE | 302 | |
| 19953 | Hartly (Delaware) | Kent | US-DE | 302 | |
| 19954 | Houston (Delaware) | Kent | US-DE | 302 | |
| 19955 | Kenton (Delaware) | Kent | US-DE | 302 | |
| 19956 | Laurel (Delaware) | Sussex | US-DE | 302 | |
| 19958 | Lewes (Delaware) | Sussex | US-DE | 302 | |
| 19960 | Lincoln (Delaware) | Sussex | US-DE | 302 | |
| 19961 | Little Creek (Delaware) | Kent | US-DE | 302 | |
| 19962 | Magnolia (Delaware) | Kent | US-DE | 302 | |
| 19963 | Milford (Delaware) | Sussex | US-DE | 302 | |
| 19964 | Marydel (Delaware) | Kent | US-DE | 302 | |
| 19966 | Millsboro (Delaware) | Sussex | US-DE | 302 | |
| 19967 | Millville (Delaware) | Sussex | US-DE | 302 | |
| 19968 | Milton (Delaware) | Sussex | US-DE | 302 | |
| 19969 | Nassau (Delaware) | Sussex | US-DE | 302 | |
| 19970 | Ocean View (Delaware) | Sussex | US-DE | 302 | |
| 19971 | Rehoboth Beach (Delaware) | Sussex | US-DE | 302 | |
| 19973 | Seaford (Delaware) | Sussex | US-DE | 302 | |
| 19975 | Selbyville (Delaware) | Sussex | US-DE | 302 | |
| 19977 | Smyrna (Delaware) | Kent | US-DE | 302 | |
| 19979 | Viola (Delaware) | Kent | US-DE | 302 | |
| 19980 | Woodside (Delaware) | Kent | US-DE | 302 | |
| 19701 | Bear (Delaware) | New Castle | US-DE | 302 | |
| 19702 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19703 | Claymont (Delaware) | New Castle | US-DE | 302 | |
| 19706 | Delaware City (Delaware) | New Castle | US-DE | 302 | |
| 19707 | Hockessin (Delaware) | New Castle | US-DE | 302 | |
| 19708 | Kirkwood (Delaware) | New Castle | US-DE | 302 | |
| 19709 | Middletown (Delaware) | New Castle | US-DE | 302 | |
| 19710 | Montchanin (Delaware) | New Castle | US-DE | 302 | |
| 19711 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19712 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19713 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19714 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19715 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19716 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19717 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19718 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19720 | New Castle (Delaware) | New Castle | US-DE | 302 | |
| 19721 | New Castle (Delaware) | New Castle | US-DE | 302 | |
| 19725 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19726 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19730 | Odessa (Delaware) | New Castle | US-DE | 302 | |
| 19731 | Port Penn (Delaware) | New Castle | US-DE | 302 | |
| 19732 | Rockland (Delaware) | New Castle | US-DE | 302 | |
| 19733 | Saint Georges (Delaware) | New Castle | US-DE | 302 | |
| 19734 | Townsend (Delaware) | New Castle | US-DE | 302 | |
| 19735 | Winterthur (Delaware) | New Castle | US-DE | 302 | |
| 19736 | Yorklyn (Delaware) | New Castle | US-DE | 302 | |
| 19801 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19802 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19803 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19804 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19805 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19806 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19807 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19808 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19809 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19810 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19850 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19880 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19884 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19885 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19886 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19887 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19889 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19890 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19891 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19892 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19893 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19894 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19895 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19896 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19897 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19898 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19899 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19901 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19902 | Dover Afb (Delaware) | Kent | US-DE | 302 | |
| 19903 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19904 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19905 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19906 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19930 | Bethany Beach (Delaware) | Sussex | US-DE | 302 | |
| 19931 | Bethel (Delaware) | Sussex | US-DE | 302 | |
| 19933 | Bridgeville (Delaware) | Sussex | US-DE | 302 | |
| 19934 | Camden Wyoming (Delaware) | Kent | US-DE | 302 | |
| 19936 | Cheswold (Delaware) | Kent | US-DE | 302 | |
| 19938 | Clayton (Delaware) | Kent | US-DE | 302 | |
| 19939 | Dagsboro (Delaware) | Sussex | US-DE | 302 | |
| 19940 | Delmar (Delaware) | Sussex | US-DE | 302 | |
| 19941 | Ellendale (Delaware) | Sussex | US-DE | 302 | |
| 19943 | Felton (Delaware) | Kent | US-DE | 302 | |
| 19944 | Fenwick Island (Delaware) | Sussex | US-DE | 302 | |
| 19945 | Frankford (Delaware) | Sussex | US-DE | 302 | |
| 19946 | Frederica (Delaware) | Kent | US-DE | 302 | |
| 19947 | Georgetown (Delaware) | Sussex | US-DE | 302 | |
| 19950 | Greenwood (Delaware) | Sussex | US-DE | 302 | |
| 19951 | Harbeson (Delaware) | Sussex | US-DE | 302 | |
| 19952 | Harrington (Delaware) | Kent | US-DE | 302 | |
| 19953 | Hartly (Delaware) | Kent | US-DE | 302 | |
| 19954 | Houston (Delaware) | Kent | US-DE | 302 | |
| 19955 | Kenton (Delaware) | Kent | US-DE | 302 | |
| 19956 | Laurel (Delaware) | Sussex | US-DE | 302 | |
| 19958 | Lewes (Delaware) | Sussex | US-DE | 302 | |
| 19960 | Lincoln (Delaware) | Sussex | US-DE | 302 | |
| 19961 | Little Creek (Delaware) | Kent | US-DE | 302 | |
| 19962 | Magnolia (Delaware) | Kent | US-DE | 302 | |
| 19963 | Milford (Delaware) | Sussex | US-DE | 302 | |
| 19964 | Marydel (Delaware) | Kent | US-DE | 302 | |
| 19966 | Millsboro (Delaware) | Sussex | US-DE | 302 | |
| 19967 | Millville (Delaware) | Sussex | US-DE | 302 | |
| 19968 | Milton (Delaware) | Sussex | US-DE | 302 | |
| 19969 | Nassau (Delaware) | Sussex | US-DE | 302 | |
| 19970 | Ocean View (Delaware) | Sussex | US-DE | 302 | |
| 19971 | Rehoboth Beach (Delaware) | Sussex | US-DE | 302 | |
| 19973 | Seaford (Delaware) | Sussex | US-DE | 302 | |
| 19975 | Selbyville (Delaware) | Sussex | US-DE | 302 | |
| 19977 | Smyrna (Delaware) | Kent | US-DE | 302 | |
| 19979 | Viola (Delaware) | Kent | US-DE | 302 | |
| 19980 | Woodside (Delaware) | Kent | US-DE | 302 | |
| 19701 | Bear (Delaware) | New Castle | US-DE | 302 | |
| 19702 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19703 | Claymont (Delaware) | New Castle | US-DE | 302 | |
| 19706 | Delaware City (Delaware) | New Castle | US-DE | 302 | |
| 19707 | Hockessin (Delaware) | New Castle | US-DE | 302 | |
| 19708 | Kirkwood (Delaware) | New Castle | US-DE | 302 | |
| 19709 | Middletown (Delaware) | New Castle | US-DE | 302 | |
| 19710 | Montchanin (Delaware) | New Castle | US-DE | 302 | |
| 19711 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19712 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19713 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19714 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19715 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19716 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19717 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19718 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19720 | New Castle (Delaware) | New Castle | US-DE | 302 | |
| 19721 | New Castle (Delaware) | New Castle | US-DE | 302 | |
| 19725 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19726 | Newark (Delaware) | New Castle | US-DE | 302 | |
| 19730 | Odessa (Delaware) | New Castle | US-DE | 302 | |
| 19731 | Port Penn (Delaware) | New Castle | US-DE | 302 | |
| 19732 | Rockland (Delaware) | New Castle | US-DE | 302 | |
| 19733 | Saint Georges (Delaware) | New Castle | US-DE | 302 | |
| 19734 | Townsend (Delaware) | New Castle | US-DE | 302 | |
| 19735 | Winterthur (Delaware) | New Castle | US-DE | 302 | |
| 19736 | Yorklyn (Delaware) | New Castle | US-DE | 302 | |
| 19801 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19802 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19803 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19804 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19805 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19806 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19807 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19808 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19809 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19810 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19850 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19880 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19884 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19885 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19886 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19887 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19889 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19890 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19891 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19892 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19893 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19894 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19895 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19896 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19897 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19898 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19899 | Wilmington (Delaware) | New Castle | US-DE | 302 | |
| 19901 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19902 | Dover Afb (Delaware) | Kent | US-DE | 302 | |
| 19903 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19904 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19905 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19906 | Dover (Delaware) | Kent | US-DE | 302 | |
| 19930 | Bethany Beach (Delaware) | Sussex | US-DE | 302 | |
| 19931 | Bethel (Delaware) | Sussex | US-DE | 302 | |
| 19933 | Bridgeville (Delaware) | Sussex | US-DE | 302 | |
| 19934 | Camden Wyoming (Delaware) | Kent | US-DE | 302 | |
| 19936 | Cheswold (Delaware) | Kent | US-DE | 302 | |
| 19938 | Clayton (Delaware) | Kent | US-DE | 302 | |
| 19939 | Dagsboro (Delaware) | Sussex | US-DE | 302 | |
| 19940 | Delmar (Delaware) | Sussex | US-DE | 302 | |
| 19941 | Ellendale (Delaware) | Sussex | US-DE | 302 | |
| 19943 | Felton (Delaware) | Kent | US-DE | 302 | |
| 19944 | Fenwick Island (Delaware) | Sussex | US-DE | 302 | |
| 19945 | Frankford (Delaware) | Sussex | US-DE | 302 | |
| 19946 | Frederica (Delaware) | Kent | US-DE | 302 | |
| 19947 | Georgetown (Delaware) | Sussex | US-DE | 302 | |
| 19950 | Greenwood (Delaware) | Sussex | US-DE | 302 | |
| 19951 | Harbeson (Delaware) | Sussex | US-DE | 302 | |
| 19952 | Harrington (Delaware) | Kent | US-DE | 302 | |
| 19953 | Hartly (Delaware) | Kent | US-DE | 302 | |
| 19954 | Houston (Delaware) | Kent | US-DE | 302 | |
| 19955 | Kenton (Delaware) | Kent | US-DE | 302 | |
| 19956 | Laurel (Delaware) | Sussex | US-DE | 302 | |
| 19958 | Lewes (Delaware) | Sussex | US-DE | 302 | |
| 19960 | Lincoln (Delaware) | Sussex | US-DE | 302 | |
| 19961 | Little Creek (Delaware) | Kent | US-DE | 302 | |
| 19962 | Magnolia (Delaware) | Kent | US-DE | 302 | |
| 19963 | Milford (Delaware) | Sussex | US-DE | 302 | |
| 19964 | Marydel (Delaware) | Kent | US-DE | 302 | |
| 19966 | Millsboro (Delaware) | Sussex | US-DE | 302 | |
| 19967 | Millville (Delaware) | Sussex | US-DE | 302 | |
| 19968 | Milton (Delaware) | Sussex | US-DE | 302 | |
| 19969 | Nassau (Delaware) | Sussex | US-DE | 302 | |
| 19970 | Ocean View (Delaware) | Sussex | US-DE | 302 | |
| 19971 | Rehoboth Beach (Delaware) | Sussex | US-DE | 302 | |
| 19973 | Seaford (Delaware) | Sussex | US-DE | 302 | |
| 19975 | Selbyville (Delaware) | Sussex | US-DE | 302 | |
| 19977 | Smyrna (Delaware) | Kent | US-DE | 302 | |
| 19979 | Viola (Delaware) | Kent | US-DE | 302 | |
| 19980 | Woodside (Delaware) | Kent | US-DE | 302 |