Postal Codes

21521 ZIP Code

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ZIP code 21521 covers Barton, Maryland, with a population of about 1,521 and a median household income of $69,758.

Population
1,52164 per square mile
Median age
54.215.5 points above the US average
Median household income
$69,75831% below the Maryland median
Poverty rate
11.4%1 points below the US average
Typical home value
$122,153up 33.2% in five years
Median rent
$91745% below the Maryland median
Degree or higher
10.1%24.9 points below the US average
Homeownership
93.6%28.6 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
18

Where 21521 is

Barton, 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

Population1,521
Median age54.2
Family households74.4%
Born outside the US0.4%
Speaks a language other than English at home1%
White (non-Hispanic)99%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino0.3%
Veterans8.4%
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$69,758
Income per person$35,683
Poverty rate11.4%
Households on SNAP or cash assistance13.4%

Household income distribution

Under $10k1.3%
$10–15k6.7%
$15–20k2.2%
$20–25k8.4%
$25–30k0.6%
$30–35k3.3%
$35–40k2.7%
$40–45k5.1%
$45–50k7.0%
$50–60k2.7%
$60–75k15.8%
$75–100k10.8%
$100–125k25.3%
$125–150k1.3%
$150–200k0.6%
$200k or more6.1%

Income as declared to the IRS

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

Tax returns filed500
Mean adjusted gross income$57,388
Returns declaring $200,000 or more0%
Returns, under $25k32.0%
Returns, $25k–$50k30.0%
Returns, $50k–$75k14.0%
Returns, $75k–$100k10.0%
Returns, $100k–$200k14.0%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$130,900
Median gross rent$917
Rent as a share of household income51%
Owner-occupied93.6%
Vacant homes15.9%
Median year built1965

What the homes are

Detached house85.9%
Attached house4.8%
2 to 4 units1.5%
5 to 19 units1.6%
Mobile home6.2%
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$122,153as of 2026-07
Typical home value, 1 yearup 4.5%
Typical home value, 5 yearsup 33.2%
Typical home value, 10 yearsup 90%
Typical home value since 2000
200020132026$122,153$34,969

$34,969 in 2000 to $122,153 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate12.6%
Bachelor's degree or higher10.1%
High school diploma or higher89.3%
Works from home3.8%
Drives to work alone87.7%
Takes public transport0%
Commutes 45 minutes or more4%
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 diabetes13.8% 1.8 pts above the national average of 12%
Currently smokes17.9% 4.7 pts above the national average of 13.2%
High blood pressure40.9% 6.8 pts above the national average of 34.1%
Fair or poor general health23.1% 2.8 pts above the national average of 20.3%
No health insurance (18–64)8.5% 2.8 pts below the national average of 11.3%
Depression26.9% 5 pts above the national average of 21.9%
No leisure-time physical activity32.8% 7.4 pts above the national average of 25.4%
Arthritis35.5% 10.4 pts above the national average of 25.1%
Binge drinking13.9% 2.1 pts below the national average of 16%
Taking blood pressure medication79.2% 4.5 pts above the national average of 74.7%
Cancer (non-skin)10.7% 3 pts above the national average of 7.7%
Current asthma11.8% 1.4 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 year80.8% 4.1 pts above the national average of 76.7%
Cholesterol screening87.8% 1.9 pts above the national average of 85.9%
Cognitive disability16.2% 1.4 pts above the national average of 14.8%
Colorectal screening65.3% 1 pts above the national average of 64.3%
COPD10.8% 4.2 pts above the national average of 6.6%
Visited a dentist57.7% 3.6 pts below the national average of 61.3%
Any disability36.3% 5.6 pts above the national average of 30.7%
Lacks emotional support23.4% 1.4 pts below the national average of 24.8%
Food insecurity16.3% 0.8 pts below the national average of 17.1%
Received food stamps14.8% 0.5 pts above the national average of 14.3%
Hearing disability9.2% 2.5 pts above the national average of 6.7%
High cholesterol40.2% 4 pts above the national average of 36.2%
Housing insecurity11.9% 1.9 pts below the national average of 13.8%
Independent living disability9.9% 1.5 pts above the national average of 8.4%
Lacks transport7.8% 1.4 pts below the national average of 9.2%
Loneliness34.5% same as the national average of 34.4%
Mammography use75.4% 0.5 pts below the national average of 75.9%
Poor mental health (14+ days)19% 2.2 pts above the national average of 16.8%
Mobility disability17.6% 3.6 pts above the national average of 14%
Poor physical health (14+ days)16.5% 3 pts above the national average of 13.5%
Self-care disability4.5% 0.5 pts above the national average of 4%
Utility shut-off threat7.8% 1 pts below the national average of 8.8%
Sleeps under 7 hours40% 3.6 pts above the national average of 36.4%
Stroke4.6% 1.2 pts above the national average of 3.4%
All natural teeth lost18.6% 5.6 pts above the national average of 13%
Vision disability5.6% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments18
People employed171
Annual payroll$10,330,000
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 24.3% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 3 census tracts this ZIP code covers
Expected annual loss18.4 out of 100
Community resilience54.8 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.

Landslide96Relatively Moderate at its worst in this ZIP code
Drought83.3Relatively Low at its worst in this ZIP code
Winter weather74.5Relatively High at its worst in this ZIP code
Strong wind69.1Relatively Moderate at its worst in this ZIP code
Hail65.8Relatively Moderate at its worst in this ZIP code
Wildfire62.7Very Low at its worst in this ZIP code
Hurricane56.5Relatively Low at its worst in this ZIP code
Lightning47.5Relatively Moderate at its worst in this ZIP code
Avalanche42Very Low at its worst in this ZIP code
River flooding40.2Relatively High at its worst in this ZIP code
Tornado33.7Relatively Low at its worst in this ZIP code
Cold wave33Relatively Low at its worst in this ZIP code
Earthquake20.5Very Low at its worst in this ZIP code
Ice storm19.2Relatively Low at its worst in this ZIP code
Heat wave9.2Relatively 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$69,758$101,652$78,538
Income per person$35,683$51,689$43,289
Poverty rate11.4%9.3%12.4%
Median home value$130,900$397,700$303,400
Median gross rent$917$1,662$1,348
Homeownership93.6%67.5%65%
Bachelor's degree or higher10.1%42.7%35%
Unemployment rate12.6%4.9%5.2%
Works from home3.8%17.2%13.5%
Born outside the US0.4%16.3%13.9%
Median age54.239.338.7
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 stationSAVAGE RVR DAM, MD US9.9 km away
Rain in a year41 in

Average high and low by month

January36°F / 20.3°F2.99 in rain
February39.2°F / 21.4°F2.64 in rain
March47.7°F / 28.1°F3.29 in rain
April60.8°F / 37.4°F3.66 in rain
May69.3°F / 47.2°F4.58 in rain
June77°F / 55.8°F4.62 in rain
July81.1°F / 60.1°F4.14 in rain
August79.7°F / 58.7°F3.46 in rain
September73.4°F / 52°F3.75 in rain
October61.8°F / 40.9°F2.93 in rain
November50.1°F / 31.8°F2.44 in rain
December39.8°F / 25.3°F2.91 in rain
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 supermarket37% of this ZIP code's area
Far from a supermarket37% of this ZIP code's area
No vehicle and far from a supermarket37% 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%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Garrett County Public Schools62.2% of this ZIP code's land area
Allegany County Public Schools37.8% 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 status40more vulnerable than 40% of US census tracts
Household characteristics46more vulnerable than 46% of US census tracts
Racial and ethnic minority status3more vulnerable than 3% of US census tracts
Housing type and transport52more vulnerable than 52% of US census tracts
Walkability6.1 out of 20Below average
Nearby ZIP codes

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

21562 Westernport, MD4.9 km away
21539 Lonaconing, MD5.7 km away
26750 Piedmont, WV6.2 km away
21540 Luke, MD6.8 km away
21523 Bloomington, MD7 km away
21542 Midland, MD9.2 km away
21557 Rawlings, MD10.5 km away
21543 Midlothian, MD13.1 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.

Garrett County62.2% of this ZIP code's land area
Allegany County37.8% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area23.82 sq mi
Water area0.02 sq mi
Population density64 people per sq mi
Latitude, longitude39.5331, -79.0281

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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