County ZIP codes · Delaware · FIPS 10001

Kent County, DE ZIP Codes

Kent County, Delaware has 23 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 19 residential and 4 for PO boxes or a single organization. 17 of the residential ones lie mainly in Kent County and 2 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $60,345 in 19954 (Houston) to $104,260 in 19962 (Magnolia) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

19954 · $60k 19962 · $104k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $66,908 and $80,459.

They carry 18 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 19 residential ZIP codes in Kent County

17 ZIP codes lie mainly in Kent County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Kent County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
19904	Dover	38,818	899	$67k	$309k	100%
19901	Dover	37,763	498	$66k	$273k	100%
19977	Smyrna	27,704	333	$77k	$341k	78%
19934	Camden Wyoming	14,061	302	$87k	$336k	100%
19962	Magnolia	13,770	942	$104k	$374k	100%
19943	Felton	13,410	215	$74k	$312k	100%
19952	Harrington	10,908	120	$77k	$283k	98%
19938	Clayton	9,561	198	$100k	$381k	85%
19946	Frederica	5,603	243	$81k	$303k	100%
19953	Hartly	5,255	176	$82k	$247k	100%
19954	Houston	1,427	146	$60k	$317k	100%
19964	Marydel	1,418	175	$99k	$330k	100%
19979	Viola	619	189	$72k	$294k	100%
19955	Kenton	352	3,556	$45k	$226k	100%
19980	Woodside	268	1,150	$85k	$350k	100%
19936	Cheswold	152	738	$34k	$110k	100%
19902	Dover Afb	44	11	–	–	100%

Partly in Kent County

Residential ZIP codes mainly in another county that reach at least 1% into Kent County, by their share here
						In this county
19963	Milford	23,500	224	$71k	$323k	50%
19950	Greenwood	7,918	109	$75k	$293k	24%

Download the 23 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Kent County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Kent County and in the neighboring counties
ZIP	In Kent	Elsewhere
19977	78%	New Castle County 22%
19963	50%	Sussex County 50%
19952	98%	Sussex County 2%
19938	85%	New Castle County 15%
19950	24%	Sussex County 76%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Kent County without a residential area (GeoNames postal codes)
ZIP	Postal name
19903	Dover
19905	Dover
19906	Dover
19961	Little Creek

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Kent County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Kent County starts with 199.

Three-digit prefixes of Kent County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Kent County's
Prefix	Sectional center	Here	All codes
199	Wilmington, DE (SCF 197)	23	44

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.

Where are the ZIP codes of Kent County?