Postal Codes

19938 ZIP Code

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ZIP code 19938 covers Clayton, Delaware, with a population of about 9,867 and a median household income of $96,338.

Population
9,867205 per square mile
Median age
37.41.3 points below the US average
Median household income
$96,3381.2× the Delaware median
Poverty rate
5.5%6.9 points below the US average
Typical home value
$430,056up 29% in five years
Median rent
$1,6241.2× the Delaware median
Degree or higher
23.4%11.6 points below the US average
Homeownership
88.5%23.5 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
89

Where 19938 is

Clayton, Delaware — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population9,867
Median age37.4
Family households81%
Born outside the US5%
Speaks a language other than English at home8.4%
White (non-Hispanic)70.7%
Black (non-Hispanic)21.2%
Asian (non-Hispanic)1.6%
Hispanic or Latino4.8%
Veterans7.2%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$96,338
Income per person$34,490
Poverty rate5.5%
Households on SNAP or cash assistance7.6%

Household income distribution

Under $10k2.5%
$10–15k0.8%
$15–20k1.3%
$20–25k3.7%
$25–30k1.4%
$30–35k1.6%
$35–40k4.0%
$40–45k3.1%
$45–50k2.4%
$50–60k6.5%
$60–75k10.9%
$75–100k14.9%
$100–125k18.4%
$125–150k9.2%
$150–200k14.0%
$200k or more5.3%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed4,970
Mean adjusted gross income$73,461
Returns declaring $200,000 or more4.2%
Returns, under $25k23.1%
Returns, $25k–$50k23.1%
Returns, $50k–$75k15.3%
Returns, $75k–$100k12.3%
Returns, $100k–$200k21.9%
Returns, $200k or more4.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$335,800
Median gross rent$1,624
Rent as a share of household income28.1%
Owner-occupied88.5%
Vacant homes2.6%
Median year built1997

What the homes are

Detached house86.6%
Attached house2.8%
2 to 4 units0.8%
Mobile home9.8%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$430,056as of 2026-07
Typical home value, 1 yearup 3%
Typical home value, 5 yearsup 29%
Typical home value, 10 yearsup 78.2%
Typical home value since 2000
200920172026$430,056$203,680

$228,994 in 2009 to $430,056 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.1%
Bachelor's degree or higher23.4%
High school diploma or higher90.9%
Works from home5.2%
Drives to work alone81.3%
Takes public transport0.3%
Commutes 45 minutes or more25.2%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity42.3% 8.9 pts above the national average of 33.4%
Diagnosed diabetes12.6% 0.6 pts above the national average of 12%
Currently smokes14.7% 1.5 pts above the national average of 13.2%
High blood pressure36.9% 2.8 pts above the national average of 34.1%
Fair or poor general health19.6% 0.7 pts below the national average of 20.3%
No health insurance (18–64)8.6% 2.7 pts below the national average of 11.3%
Depression24.1% 2.2 pts above the national average of 21.9%
No leisure-time physical activity29.4% 4 pts above the national average of 25.4%
Arthritis28.2% 3.1 pts above the national average of 25.1%
Binge drinking14.7% 1.3 pts below the national average of 16%
Taking blood pressure medication76% 1.3 pts above the national average of 74.7%
Cancer (non-skin)8.3% 0.6 pts above the national average of 7.7%
Current asthma12.3% 1.9 pts above the national average of 10.4%
Coronary heart disease6.1% same as the national average of 6.2%
Routine check-up in past year80.6% 3.9 pts above the national average of 76.7%
Cholesterol screening86.4% 0.5 pts above the national average of 85.9%
Cognitive disability14.7% same as the national average of 14.8%
Colorectal screening65% 0.7 pts above the national average of 64.3%
COPD7.5% 0.9 pts above the national average of 6.6%
Visited a dentist62.7% 1.4 pts above the national average of 61.3%
Any disability32.9% 2.2 pts above the national average of 30.7%
Lacks emotional support22.1% 2.7 pts below the national average of 24.8%
Food insecurity13.4% 3.7 pts below the national average of 17.1%
Received food stamps11.8% 2.5 pts below the national average of 14.3%
Hearing disability6.4% same as the national average of 6.7%
High cholesterol38.9% 2.7 pts above the national average of 36.2%
Housing insecurity12.1% 1.7 pts below the national average of 13.8%
Independent living disability8.3% same as the national average of 8.4%
Lacks transport7.5% 1.7 pts below the national average of 9.2%
Loneliness34.1% same as the national average of 34.4%
Mammography use73.5% 2.4 pts below the national average of 75.9%
Poor mental health (14+ days)18.1% 1.3 pts above the national average of 16.8%
Mobility disability15% 1 pts above the national average of 14%
Poor physical health (14+ days)14.4% 0.9 pts above the national average of 13.5%
Self-care disability3.7% same as the national average of 4%
Utility shut-off threat7.4% 1.4 pts below the national average of 8.8%
Sleeps under 7 hours39.4% 3 pts above the national average of 36.4%
Stroke3.4% same as the national average of 3.4%
All natural teeth lost11.8% 1.2 pts below the national average of 13%
Vision disability4.7% 0.9 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments89
People employed993
Annual payroll$43,528,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 68.1% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 6 census tracts this ZIP code covers
Expected annual loss69 out of 100
Community resilience59.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought96.2Relatively Moderate at its worst in this ZIP code
Winter weather90.8Relatively High at its worst in this ZIP code
Cold wave86Relatively High at its worst in this ZIP code
Hurricane85.1Relatively Moderate at its worst in this ZIP code
Heat wave73.9Relatively Moderate at its worst in this ZIP code
Wildfire73Relatively Low at its worst in this ZIP code
River flooding72Relatively High at its worst in this ZIP code
Coastal flooding71.7Very Low at its worst in this ZIP code
Lightning66.1Relatively Moderate at its worst in this ZIP code
Landslide63.1Very Low at its worst in this ZIP code
Strong wind60.4Relatively Moderate at its worst in this ZIP code
Hail58.5Relatively Low at its worst in this ZIP code
Earthquake58.4Relatively Low at its worst in this ZIP code
Tornado54.7Relatively Moderate at its worst in this ZIP code
Ice storm54.4Relatively Low at its worst in this ZIP code
Compared with Delaware and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPDelawareUnited States
Median household income$96,338$82,855$78,538
Income per person$34,490$44,219$43,289
Poverty rate5.5%10.7%12.4%
Median home value$335,800$326,800$303,400
Median gross rent$1,624$1,341$1,348
Homeownership88.5%72.3%65%
Bachelor's degree or higher23.4%35.3%35%
Unemployment rate2.1%5.1%5.2%
Works from home5.2%13.3%13.5%
Born outside the US5%10.4%13.9%
Median age37.441.538.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationDOVER, DE US20.1 km away
Rain in a year48 in
Snow in a year13 in

Average high and low by month

January44.4°F / 27.6°F3.43 in rain, 4.1 in snow
February47.4°F / 29°F3.08 in rain, 5.9 in snow
March54.5°F / 35.4°F4.21 in rain, 0.6 in snow
April66°F / 44.9°F3.72 in rain
May74.4°F / 54.4°F3.89 in rain
June82.7°F / 63.8°F4.56 in rain
July86.9°F / 69°F4.14 in rain
August85.1°F / 67.3°F4.92 in rain
September79.2°F / 61°F4.25 in rain
October68.9°F / 49.5°F4.06 in rain
November58°F / 39.3°F3.36 in rain
December48.6°F / 32.1°F3.99 in rain, 2.6 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket80% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Smyrna School District99.3% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability36more vulnerable than 36% of US census tracts
Socioeconomic status46more vulnerable than 46% of US census tracts
Household characteristics52more vulnerable than 52% of US census tracts
Racial and ethnic minority status28more vulnerable than 28% of US census tracts
Housing type and transport25more vulnerable than 25% of US census tracts
Walkability3.9 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

19955 Kenton, DE4.1 km away
19977 Smyrna, DE8.7 km away
19936 Cheswold, DE10 km away
19953 Hartly, DE11.4 km away
21650 Massey, MD12.9 km away
19904 Dover, DE13.3 km away
19734 Townsend, DE14 km away
21670 Templeville, MD14.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Kent County85.1% of this ZIP code's land area
New Castle County14.9% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area48.21 sq mi
Population density205 people per sq mi
Latitude, longitude39.2564, -75.6904

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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