Postal Codes

21817 ZIP Code

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ZIP code 21817 covers Crisfield, Maryland, with a population of about 4,102 and a median household income of $53,139.

Population
4,102284 per square mile
Median age
45.56.8 points above the US average
Median household income
$53,13948% below the Maryland median
Poverty rate
15.7%3.3 points above the US average
Typical home value
$165,977up 26% in five years
Median rent
$72956% below the Maryland median
Degree or higher
21.8%13.2 points below the US average
Homeownership
69.4%4.4 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
102

Where 21817 is

Crisfield, Maryland — 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

Population4,102
Median age45.5
Family households59.6%
Born outside the US1.6%
Speaks a language other than English at home3%
White (non-Hispanic)71.8%
Black (non-Hispanic)19.7%
Asian (non-Hispanic)1%
Hispanic or Latino2.8%
Veterans7.1%
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$53,139
Income per person$32,214
Poverty rate15.7%
Households on SNAP or cash assistance29.6%

Household income distribution

Under $10k5.1%
$10–15k6.5%
$15–20k7.3%
$20–25k5.9%
$25–30k4.6%
$30–35k2.9%
$35–40k3.0%
$40–45k6.2%
$45–50k4.7%
$50–60k13.4%
$60–75k8.4%
$75–100k14.0%
$100–125k7.4%
$125–150k1.8%
$150–200k4.7%
$200k or more3.9%

Income as declared to the IRS

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

Tax returns filed2,160
Mean adjusted gross income$49,765
Returns declaring $200,000 or more1.9%
Returns, under $25k37.0%
Returns, $25k–$50k29.2%
Returns, $50k–$75k13.4%
Returns, $75k–$100k8.3%
Returns, $100k–$200k10.2%
Returns, $200k or more1.9%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$159,600
Median gross rent$729
Rent as a share of household income25.2%
Owner-occupied69.4%
Vacant homes26.2%
Median year built1975

What the homes are

Detached house71.2%
Attached house2.6%
2 to 4 units12.3%
5 to 19 units4.6%
20 or more units3.1%
Mobile home6%
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$165,977as of 2026-07
Typical home value, 1 yearup 2.1%
Typical home value, 5 yearsup 26%
Typical home value, 10 yearsup 97.6%
Typical home value since 2000
200020132026$167,165$55,495

$55,495 in 2000 to $165,977 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate7.5%
Bachelor's degree or higher21.8%
High school diploma or higher88.2%
Works from home7.2%
Drives to work alone81.2%
Takes public transport0%
Commutes 45 minutes or more17.9%
Health

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

Obesity36% 2.6 pts above the national average of 33.4%
Diagnosed diabetes14.9% 2.9 pts above the national average of 12%
Currently smokes15.8% 2.6 pts above the national average of 13.2%
High blood pressure44.8% 10.7 pts above the national average of 34.1%
Fair or poor general health22.3% 2 pts above the national average of 20.3%
No health insurance (18–64)9.1% 2.2 pts below the national average of 11.3%
Depression21.9% same as the national average of 21.9%
No leisure-time physical activity30.2% 4.8 pts above the national average of 25.4%
Arthritis34.7% 9.6 pts above the national average of 25.1%
Binge drinking13.9% 2.1 pts below the national average of 16%
Taking blood pressure medication80% 5.3 pts above the national average of 74.7%
Cancer (non-skin)10.3% 2.6 pts above the national average of 7.7%
Current asthma11.5% 1.1 pts above the national average of 10.4%
Coronary heart disease8.6% 2.4 pts above the national average of 6.2%
Routine check-up in past year81.5% 4.8 pts above the national average of 76.7%
Cholesterol screening89.4% 3.5 pts above the national average of 85.9%
Cognitive disability14.8% same as the national average of 14.8%
Colorectal screening67.4% 3.1 pts above the national average of 64.3%
COPD9.6% 3 pts above the national average of 6.6%
Visited a dentist57.3% 4 pts below the national average of 61.3%
Any disability33.5% 2.8 pts above the national average of 30.7%
Lacks emotional support24.4% same as the national average of 24.8%
Food insecurity17.1% same as the national average of 17.1%
Received food stamps15.5% 1.2 pts above the national average of 14.3%
Hearing disability8.3% 1.6 pts above the national average of 6.7%
High cholesterol42% 5.8 pts above the national average of 36.2%
Housing insecurity13.6% same as the national average of 13.8%
Independent living disability9.5% 1.1 pts above the national average of 8.4%
Lacks transport8.7% 0.5 pts below the national average of 9.2%
Loneliness32.3% 2.1 pts below the national average of 34.4%
Mammography use78.9% 3 pts above the national average of 75.9%
Poor mental health (14+ days)16.7% same as the national average of 16.8%
Mobility disability17.8% 3.8 pts above the national average of 14%
Poor physical health (14+ days)15.6% 2.1 pts above the national average of 13.5%
Self-care disability4.8% 0.8 pts above the national average of 4%
Utility shut-off threat9.2% same as the national average of 8.8%
Sleeps under 7 hours40.1% 3.7 pts above the national average of 36.4%
Stroke4.7% 1.3 pts above the national average of 3.4%
All natural teeth lost14.8% 1.8 pts above the national average of 13%
Vision disability5.9% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments102
People employed1,117
Annual payroll$40,776,000
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 95.7% of US census tracts
FEMA ratingRelatively High
Expected annual loss94.2 out of 100
Community resilience86.7 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.

Coastal flooding99.9Very High at its worst in this ZIP code
Hurricane95.1Relatively High at its worst in this ZIP code
Wildfire94.9Relatively Moderate at its worst in this ZIP code
Drought91.4Relatively Moderate at its worst in this ZIP code
Cold wave80.3Relatively High at its worst in this ZIP code
Ice storm73.6Relatively Moderate at its worst in this ZIP code
Strong wind72.7Relatively Moderate at its worst in this ZIP code
Winter weather72.7Relatively Moderate at its worst in this ZIP code
Hail63.3Relatively Moderate at its worst in this ZIP code
River flooding57.6Relatively Moderate at its worst in this ZIP code
Lightning52.4Relatively Moderate at its worst in this ZIP code
Earthquake43.8Relatively Low at its worst in this ZIP code
Heat wave42.9Relatively Low at its worst in this ZIP code
Tornado35.9Relatively Low at its worst in this ZIP code
Landslide31.6Very Low at its worst in this ZIP code
Compared with Maryland 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 ZIPMarylandUnited States
Median household income$53,139$101,652$78,538
Income per person$32,214$51,689$43,289
Poverty rate15.7%9.3%12.4%
Median home value$159,600$397,700$303,400
Median gross rent$729$1,662$1,348
Homeownership69.4%67.5%65%
Bachelor's degree or higher21.8%42.7%35%
Unemployment rate7.5%4.9%5.2%
Works from home7.2%17.2%13.5%
Born outside the US1.6%16.3%13.9%
Median age45.539.338.7
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 stationWALLOPS ISLAND FLIGHT FAC, VA US33.7 km away
Rain in a year43 in
Snow in a year8 in

Average high and low by month

January46.2°F / 29.5°F3.15 in rain, 3.5 in snow
February48.5°F / 31.1°F2.81 in rain, 2.3 in snow
March54.5°F / 37°F3.91 in rain, 0.7 in snow
April64.3°F / 45.9°F3.12 in rain, 0.2 in snow
May72.7°F / 55.5°F3.2 in rain
June81.3°F / 65.1°F3.39 in rain
July86.1°F / 70.4°F4.37 in rain
August84.2°F / 68.7°F4.32 in rain
September78.7°F / 63°F4.33 in rain
October69.1°F / 51.4°F4.02 in rain
November58.8°F / 40.7°F2.88 in rain
December50.5°F / 33.5°F3.75 in rain, 1.7 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 supermarket18% 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%.

Somerset County Public Schools100% 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 vulnerability39more vulnerable than 39% of US census tracts
Socioeconomic status37more vulnerable than 37% of US census tracts
Household characteristics44more vulnerable than 44% of US census tracts
Racial and ethnic minority status30more vulnerable than 30% of US census tracts
Housing type and transport46more vulnerable than 46% of US census tracts
Walkability4.9 out of 20Least walkable
Nearby ZIP codes

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

21838 Marion Station, MD8.8 km away
23427 Saxis, VA12.4 km away
21890 Westover, MD12.7 km away
21867 Upper Fairmount, MD14 km away
21871 Westover, MD15.8 km away
21866 Tylerton, MD16 km away
23426 Sanford, VA16 km away
21836 Manokin, MD16.4 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.

Somerset County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area14.46 sq mi
Water area3.54 sq mi
Population density284 people per sq mi
Latitude, longitude37.9845, -75.8429

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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