Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/DE/COUNTY/SUSSEX

Sussex County, DE ZIP codes

There are 23 ZIP codes in Sussex County, DE, in 23 towns, from 19930 to 19975. The largest are 19966 (Millsboro), 19958 (Lewes) and 19973 (Seaford).

The county seat is Georgetown.

ZIP codes
23
Towns
23
County seat
Georgetown
County FIPS
10005
Population
255,626
Median household income
$81,497
Land area
936 sq mi
Area code
302
Metro area
Seaford

Sussex County ZIP codes by town

Georgetown (county seat)
19947

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Sussex County ZIP codes

1993019931199331993919940199411994419945199471995019951199561995819960199631996619967199681996919970199711997319975

The ZIP codes of Sussex County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Sussex County in numbers

About 255,626 people live in Sussex County, in 106,441 households, the 2nd most populous of Delaware's 3 counties. The median household income is $81,497 a year, 4% below the Delaware median of $84,954 (US: $80,734). The median owner-occupied home is valued at $382,600 (9% above the Delaware median), and median gross rent is $1,238 a month. The median age is 51.9; 33.0% of adults 25 and over hold a bachelor's degree or higher (35.8% across Delaware); the average commute takes 27 minutes.

Population255,626Sussex255,626
Households106,441Sussex106,441
Median age51.9Sussex51.9Delaware41.6US 38.9
Median household income$81,497Sussex$81,497Delaware$84,954US $80,734
Median home value$382,600Sussex$382,600Delaware$352,000US $332,700
Median gross rent$1,238Sussex$1,238Delaware$1,401US $1,413
Bachelor's degree or higher33.0%Sussex33.0%Delaware35.8%US 35.7%
Mean commute27.3 minSussex27.3 minDelaware26.0 minUS 26.4 min
Population density273 / sq miSussex273 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Sussex County

Largest towns in Sussex County
TownZIP codesPopulation
Milford 1 12,803
Seaford 1 8,485
Georgetown 1 7,660
Millsboro 1 7,424
Laurel 1 4,152
Milton 1 3,567
Lewes 1 3,505
Selbyville 1 3,097
Ocean View 1 2,851
Bridgeville 1 2,745
Millville 1 2,430
Delmar 1 2,412
Harbeson 1 2,245
Lincoln 1 1,873
Greenwood 1 1,564

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Sussex County.

Not sure you are in Sussex County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Sussex County, with figures

ZIP codes in Sussex County
ZIP City Type Population Median income Median home
19930 Bethany Beach , DE Standard 3,014 $125,491 $887,400
19931 Bethel , DE Standard 375 $99,375 $294,700
19933 Bridgeville , DE Standard 10,597 $60,703 $269,200
19939 Dagsboro , DE Standard 7,490 $89,806 $420,700
19940 Delmar , DE Standard 7,540 $65,024 $235,300
19941 Ellendale , DE Standard 3,435 $75,139 $243,800
19944 Fenwick Island , DE Standard 636 $121,250 $1,189,300
19945 Frankford , DE Standard 9,640 $87,638 $443,100
19947 Georgetown , DE Standard 20,760 $71,229 $322,300
19950 Greenwood , DE Standard 7,918 $75,305 $292,900
19951 Harbeson , DE Standard 2,245 $95,546 $472,400
19956 Laurel , DE Standard 16,327 $65,603 $259,500
19958 Lewes , DE Standard 31,938 $97,197 $534,600
19960 Lincoln , DE Standard 6,774 $67,200 $275,700
19963 Milford , DE Standard 23,500 $71,108 $322,500
19966 Millsboro , DE Standard 35,884 $78,305 $317,500
19967 Millville , DE Standard 2,376 $98,301 $483,100
19968 Milton , DE Standard 15,486 $87,163 $437,000
19969 Nassau , DE No street area — — —
19970 Ocean View , DE Standard 8,524 $94,103 $526,600
19971 Rehoboth Beach , DE Standard 14,886 $102,146 $608,800
19973 Seaford , DE Standard 26,834 $64,387 $278,300
19975 Selbyville , DE Standard 10,862 $88,568 $462,700

Cite this page

zipcodes.pro. “Sussex County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/de/county/sussex

Underlying data is public domain or openly licensed — sources, vintages and licences.