State ZIP codes · DE
Delaware ZIP Codes
Delaware has 68 residential ZIP codes in 3 counties, with first three digits 197–199, plus 28 PO Box or single-organization ZIP codes (Census 2020 ZCTAs; GeoNames postal codes, October 2026).
- ACS2020-24
- Census2020
- GeoNames2026
Map of Delaware's ZIP codes
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
Which Delaware ZIP codes earn the most and least?
- Highest median household income
- 19707Hockessin · $172,696
- Lowest median household income
- 19801Wilmington · $52,810
- Highest median home value
- 19807Wilmington · $936,900
- Lowest median home value
- 19802Wilmington · $194,600
Highest and lowest among the ZIP codes of 1,000 or more people living in households, whose estimate's margin is at most 25% of it (a campus, a base or a ZIP code of a few hundred people does not lead).
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077); every residential ZIP code with an estimate.
Which Delaware cities have the most ZIP codes?
- Wilmington 10 residential
- Newark 5 residential
- Dover 2 residential
ZIP codes by their first three digits
ZIP codes in each county of Delaware
- Kent County 23 ZIPs
- New Castle County 54 ZIPs
- Sussex County 24 ZIPs
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file; GeoNames postal codes (CC BY 4.0).
Every ZIP code in Delaware, by county
Download the 96 ZIP codes as CSV
Kent
- 19901 Dover
- 19902 Dover Afb
- 19903 Dover PO Box or unique
- 19904 Dover
- 19905 Dover PO Box or unique
- 19906 Dover PO Box or unique
- 19934 Camden Wyoming
- 19936 Cheswold
- 19938 Clayton
- 19943 Felton
- 19946 Frederica
- 19952 Harrington
- 19953 Hartly
- 19954 Houston
- 19955 Kenton
- 19961 Little Creek PO Box or unique
- 19962 Magnolia
- 19964 Marydel
- 19977 Smyrna
- 19979 Viola
- 19980 Woodside
New Castle
- 19701 Bear
- 19702 Newark
- 19703 Claymont
- 19706 Delaware City
- 19707 Hockessin
- 19708 Kirkwood PO Box or unique
- 19709 Middletown
- 19710 Montchanin
- 19711 Newark
- 19712 Newark PO Box or unique
- 19713 Newark
- 19714 Newark PO Box or unique
- 19715 Newark PO Box or unique
- 19716 Newark
- 19717 Newark
- 19718 Newark PO Box or unique
- 19720 New Castle
- 19721 New Castle PO Box or unique
- 19725 Newark PO Box or unique
- 19726 New Castle PO Box or unique
- 19730 Odessa
- 19731 Port Penn
- 19732 Rockland
- 19733 Saint Georges
- 19734 Townsend
- 19735 Winterthur
- 19736 Yorklyn
- 19801 Wilmington
- 19802 Wilmington
- 19803 Wilmington
- 19804 Wilmington
- 19805 Wilmington
- 19806 Wilmington
- 19807 Wilmington
- 19808 Wilmington
- 19809 Wilmington
- 19810 Wilmington
- 19850 Wilmington PO Box or unique
- 19880 Wilmington PO Box or unique
- 19884 Wilmington PO Box or unique
- 19885 Wilmington PO Box or unique
- 19886 Wilmington PO Box or unique
- 19890 Wilmington PO Box or unique
- 19891 Wilmington PO Box or unique
- 19892 Wilmington PO Box or unique
- 19893 Wilmington PO Box or unique
- 19894 Wilmington PO Box or unique
- 19895 Wilmington PO Box or unique
- 19896 Wilmington PO Box or unique
- 19897 Wilmington PO Box or unique
- 19898 Wilmington PO Box or unique
- 19899 Wilmington PO Box or unique
Sussex
- 19930 Bethany Beach
- 19931 Bethel
- 19933 Bridgeville
- 19939 Dagsboro
- 19940 Delmar
- 19941 Ellendale
- 19944 Fenwick Island
- 19945 Frankford
- 19947 Georgetown
- 19950 Greenwood
- 19951 Harbeson
- 19956 Laurel
- 19958 Lewes
- 19960 Lincoln
- 19963 Milford
- 19966 Millsboro
- 19967 Millville
- 19968 Milton
- 19969 Nassau PO Box or unique
- 19970 Ocean View
- 19971 Rehoboth Beach
- 19973 Seaford
- 19975 Selbyville
Source: U.S. Census Bureau 2020 ZCTAs; GeoNames postal codes for ZIP codes without a residential area.