ZIP codes

ZIP codes in Kent County, Delaware

Kent County has 19 ZIP codes. 14 lie entirely inside it and 5 are shared with neighboring counties, so part of their land and their people are elsewhere. About 190,417 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 19; With 1% or more of their land inside
Entirely inside: 14; 99% or more of their land
Shared with other counties: 5; Most with Sussex County (3)
Most populated ZIP: 19904; 38,818 people · Dover
Least populated ZIP: 19902; 44 people · Dover
Largest ZIP by land: 19952; 91 sq mi · Harrington

Map of the ZIP codes in Kent County

Entirely in the county (99% or more of its land)
Shared, mostly in this county
Shared, mostly in other counties
Neighboring counties

Open in the interactive tool

Each area is a ZIP code with its number where it fits. Hover over one to see its name.

All ZIP codes in Kent County

19 ZIP codes in Kent County, DE, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
19901	Dover	37,763	100%	37,763
19902	Dover	44	100%	44
19904	Dover	38,818	100%	38,818
19934	Camden	14,061	100%	14,061
19936	Cheswold	152	100%	152
19938	Clayton	9,561	85%	≈ 8,898
19943	Riverview	13,410	100%	13,410
19946	Frederica	5,603	100%	5,603
19950	Greenwood	7,918	24%	≈ 1,133
19952	Harrington	10,908	98%	≈ 10,744
19953	Hartly	5,255	100%	5,255
19954	Houston	1,427	100%	1,427
19955	Kenton	352	100%	352
19962	Rising Sun-Lebanon	13,770	100%	13,770
19963	Milford	23,500	50%	≈ 11,025
19964	—	1,418	100%	1,418
19977	Smyrna	27,704	78%	≈ 25,657
19979	Viola	619	100%	619
19980	Woodside	268	100%	268

ZIP codes shared with other counties

These 5 ZIP codes have part of their land in another county. The first figure is the share of their land in Kent County; then, where the rest lies.

19938 (Clayton): 85% here; 15% in New Castle County.
19950 (Greenwood): 24% here; 76% in Sussex County.
19952 (Harrington): 98% here; 1.6% in Sussex County.
19963 (Milford): 50% here; 50% in Sussex County.
19977 (Smyrna): 78% here; 22% in New Castle County.

Cities and prefixes

By main city (the city, town or CDP each ZIP shares the most land with), the ones with the most are Dover (3), Camden (1), Cheswold (1), Clayton (1), Frederica (1), and Greenwood (1); 16 places in all.

All 19 start with the same three digits, 199: the prefix of the USPS sorting center that handles them.

Neighboring counties

Each one with its ZIP codes. Those without a page of their own open in the tool.

Tools for this county

ZIP codes by county or city The same ZIP codes on an interactive map, with the list as CSV or to copy County map with cities Its cities, towns and CDPs with their population ZIP codes in a radius The ZIP codes within 10 miles of its center, or any distance you like

Sources

U.S. Census Bureau, 2020 ZCTA to County, ZCTA to Place and ZCTA to Census Tract Relationship Files (and the 2022 County Subdivision to ZCTA file for Connecticut). Public domain.
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table B01003 (population of each ZIP code, census tract and Connecticut town). Public domain.
U.S. Census Bureau, Vintage 2025 Population Estimates (county population) and 2025 Gazetteer Files (land area and interior point of each ZIP code). Public domain.
U.S. Census Bureau, Cartographic Boundary Files: ZCTAs 2020 and counties 2025, 1:500,000; county adjacency file 2025. Public domain.

How we count. ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas (ZCTAs), the areas it draws to match USPS ZIP codes; ZIPs with no area of their own (PO boxes, single buildings) aren’t included. A ZIP can cross county lines: “Land in the county” is the exact share of its land inside, from the Census relationship files. “Residents in the county” is the whole ZIP for those entirely inside; for shared ones it’s an estimate, spreading the people of each census tract over the land it shares with the ZIP. Population: ACS 2020–2024. Methodology.

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