Delaware ZIP codes
Delaware has 96 ZIP codes (19701–19980) across 57 cities and towns and 3 counties.
- ZIP codes
- 96
- With delivery area
- 68
- Population in ZIPs
- 1,021,605
- Cities & towns
- 57
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Richest ZIP codes in Delaware Most expensive ZIP codes
Zoom in to see ZIP code boundaries. Click a dot to open a ZIP code, or anywhere else to see which ZIP it's in.
Largest cities in Delaware
Delaware ZIP codes by county
- Kent County (23)
- New Castle County (55)
- Sussex County (25)
Most populated Delaware ZIP codes
All Delaware cities and towns
- Bear
- Bethany Beach
- Bethel
- Bridgeville
- Camden Wyoming
- Cheswold
- Claymont
- Clayton
- Dagsboro
- Delaware City
- Delmar
- Dover
- Dover Afb
- Ellendale
- Felton
- Fenwick Island
- Frankford
- Frederica
- Georgetown
- Greenwood
- Harbeson
- Harrington
- Hartly
- Hockessin
- Houston
- Kenton
- Kirkwood
- Laurel
- Lewes
- Lincoln
- Little Creek
- Magnolia
- Marydel
- Middletown
- Milford
- Millsboro
- Millville
- Milton
- Montchanin
- Nassau
- New Castle
- Newark
- Ocean View
- Odessa
- Port Penn
- Rehoboth Beach
- Rockland
- Saint Georges
- Seaford
- Selbyville
- Smyrna
- Townsend
- Viola
- Wilmington
- Winterthur
- Woodside
- Yorklyn
Frequently asked questions
How many ZIP codes are in Delaware?
Delaware has 96 ZIP codes: 68 with a delivery area and 28 PO Box or single-organization ZIP codes.
What ZIP codes does Delaware use?
Delaware ZIP codes run from 19701 to 19980.
Which Delaware ZIP code has the most people?
ZIP code 19720 in New Castle has the largest population, about 62,392 residents (ACS 2020–2024).