Delaware Zip Codes

Delaware is one of the smallest states in the United States by land mass, but it’s packed with fun and interesting things to see and do. It has a population of over 989,000 people.

There are about three counties in this state, and they are  Kent, Sussex, and New Castle. New Castle County is the most populous county, and it is home to the state capital, Wilmington.

From its historic cities to its beautiful beaches, Delaware has something to offer everyone. The state is also home to 98 zip codes, which are used by the United States Postal Service to sort and deliver mail.

These five-digit numbers help to identify a specific geographic area. They are typically assigned to cities and towns, but can also be used to identify rural areas, military bases, and other types of locations.

Delaware Zip Codes

CityZIP CodeCounty
Dover19901Kent
Dover Afb19902Kent
Dover19903Kent
Dover19904Kent
Dover19905Kent
Dover19906Kent
Camden Wyoming19934Kent
Cheswold19936Kent
Clayton19938Kent
Felton19943Kent
Frederica19946Kent
Harrington19952Kent
Hartly19953Kent
Houston19954Kent
Kenton19955Kent
Little Creek19961Kent
Magnolia19962Kent
Marydel19964Kent
Smyrna19977Kent
Viola19979Kent
Woodside19980Kent
Bear19701New Castle
Newark19702New Castle
Claymont19703New Castle
Delaware City19706New Castle
Hockessin19707New Castle
Kirkwood19708New Castle
Middletown19709New Castle
Montchanin19710New Castle
Newark19711New Castle
Newark19712New Castle
Newark19713New Castle
Newark19714New Castle
Newark19715New Castle
Newark19716New Castle
Newark19717New Castle
Newark19718New Castle
New Castle19720New Castle
New Castle19721New Castle
Newark19725New Castle
Newark19726New Castle
Odessa19730New Castle
Port Penn19731New Castle
Rockland19732New Castle
Saint Georges19733New Castle
Townsend19734New Castle
Winterthur19735New Castle
Yorklyn19736New Castle
Wilmington19801New Castle
Wilmington19802New Castle
Wilmington19803New Castle
Wilmington19804New Castle
Wilmington19805New Castle
Wilmington19806New Castle
Wilmington19807New Castle
Wilmington19808New Castle
Wilmington19809New Castle
Wilmington19810New Castle
Wilmington19850New Castle
Wilmington19880New Castle
Wilmington19884New Castle
Wilmington19885New Castle
Wilmington19886New Castle
Wilmington19887New Castle
Wilmington19889New Castle
Wilmington19890New Castle
Wilmington19891New Castle
Wilmington19892New Castle
Wilmington19893New Castle
Wilmington19894New Castle
Wilmington19895New Castle
Wilmington19896New Castle
Wilmington19897New Castle
Wilmington19898New Castle
Wilmington19899New Castle
Bethany Beach19930Sussex
Bethel19931Sussex
Bridgeville19933Sussex
Dagsboro19939Sussex
Delmar19940Sussex
Ellendale19941Sussex
Fenwick Island19944Sussex
Frankford19945Sussex
Georgetown19947Sussex
Greenwood19950Sussex
Harbeson19951Sussex
Laurel19956Sussex
Lewes19958Sussex
Lincoln19960Sussex
Milford19963Sussex
Millsboro19966Sussex
Millville19967Sussex
Milton19968Sussex
Nassau19969Sussex
Ocean View19970Sussex
Rehoboth Beach19971Sussex
Seaford19973Sussex
Selbyville19975Sussex

READ ALSO: Connecticut Zip Codes

Uses of Zip Codes In Delaware

Zip codes in Delaware serve a number of purposes, which include;

  • Delivering mail: using these codes helps the United States Postal Service to sort and deliver mail efficiently.
  • Identifying geographic areas: it can also be used to identify specific geographic areas, such as cities, towns, and rural areas.

This information can be used for a variety of purposes, such as tracking population growth, planning for new infrastructure, and responding to emergencies.

  • Calculating shipping rates: they are also used by shipping companies to calculate shipping rates.
  • Conducting demographic research: it is also used for tracking income levels, education levels, and age distribution.

Delaware Zip Code Prefixes

The first two digits of a Delaware zip code indicate the county in which the location is located. The following table shows the Delaware zip code prefixes and their corresponding counties:

  • 197 New Castle
  • 198 Kent
  • 199 Sussex

READ ALSO: Colorado Zip Codes

The remaining three digits of a Delaware zip code identify the specific location within the county. For example, the zip code 19701 is for the city of Bear, New Castle County.

Some Facts About Delaware Zip Codes

  • The Zip code with the largest population in Delaware is 19807, which is home to the city of Wilmington.
  • The ZIP code with the smallest population in Delaware is 19975, and that is the town of Selbyville.