Postal Codes

21811 ZIP Code

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ZIP code 21811 covers Berlin, Maryland, with a population of about 24,263 and a median household income of $91,293.

Population
24,263239 per square mile
Median age
55.216.5 points above the US average
Median household income
$91,29310% below the Maryland median
Poverty rate
7.2%5.2 points below the US average
Typical home value
$436,537up 21% in five years
Median rent
$1,39816% below the Maryland median
Degree or higher
36.1%1.1 points above the US average
Homeownership
81.4%16.4 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
673

Where 21811 is

Berlin, 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

Population24,263
Median age55.2
Family households70.8%
Born outside the US4.6%
Speaks a language other than English at home5.9%
White (non-Hispanic)82%
Black (non-Hispanic)8.6%
Asian (non-Hispanic)1.8%
Hispanic or Latino3.3%
Veterans11.1%
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$91,293
Income per person$51,603
Poverty rate7.2%
Households on SNAP or cash assistance8.5%

Household income distribution

Under $10k3.6%
$10–15k2.2%
$15–20k1.2%
$20–25k2.4%
$25–30k2.9%
$30–35k3.2%
$35–40k2.6%
$40–45k3.9%
$45–50k4.1%
$50–60k6.2%
$60–75k8.9%
$75–100k14.2%
$100–125k13.5%
$125–150k9.5%
$150–200k7.8%
$200k or more14.1%

Income as declared to the IRS

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

Tax returns filed13,180
Mean adjusted gross income$91,309
Returns declaring $200,000 or more8.5%
Returns, under $25k27.1%
Returns, $25k–$50k20.3%
Returns, $50k–$75k14.2%
Returns, $75k–$100k10.2%
Returns, $100k–$200k19.7%
Returns, $200k or more8.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$362,500
Median gross rent$1,398
Rent as a share of household income30.7%
Owner-occupied81.4%
Vacant homes30.7%
Median year built1993

What the homes are

Detached house78.4%
Attached house6.9%
2 to 4 units1.5%
5 to 19 units2.8%
20 or more units2.3%
Mobile home8.1%
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$436,537as of 2026-07
Typical home value, 1 yeardown 1.3%
Typical home value, 5 yearsup 21%
Typical home value, 10 yearsup 72.8%
Typical asking rent$2,204as of 2026-07
Typical home value since 2000
200020132026$444,299$141,904

$141,904 in 2000 to $436,537 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.1%
Bachelor's degree or higher36.1%
High school diploma or higher94%
Works from home12.1%
Drives to work alone77.3%
Takes public transport0.5%
Commutes 45 minutes or more10.2%
Health

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

Obesity31.7% 1.7 pts below the national average of 33.4%
Diagnosed diabetes13% 1 pts above the national average of 12%
Currently smokes11.3% 1.9 pts below the national average of 13.2%
High blood pressure41.3% 7.2 pts above the national average of 34.1%
Fair or poor general health16.9% 3.4 pts below the national average of 20.3%
No health insurance (18–64)6.6% 4.7 pts below the national average of 11.3%
Depression20.3% 1.6 pts below the national average of 21.9%
No leisure-time physical activity24.1% 1.3 pts below the national average of 25.4%
Arthritis34.3% 9.2 pts above the national average of 25.1%
Binge drinking16.2% same as the national average of 16%
Taking blood pressure medication81.8% 7.1 pts above the national average of 74.7%
Cancer (non-skin)12.3% 4.6 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease7.8% 1.6 pts above the national average of 6.2%
Routine check-up in past year83.5% 6.8 pts above the national average of 76.7%
Cholesterol screening92% 6.1 pts above the national average of 85.9%
Cognitive disability11.1% 3.7 pts below the national average of 14.8%
Colorectal screening74.8% 10.5 pts above the national average of 64.3%
COPD7.4% 0.8 pts above the national average of 6.6%
Visited a dentist68.7% 7.4 pts above the national average of 61.3%
Any disability27.9% 2.8 pts below the national average of 30.7%
Lacks emotional support19.2% 5.6 pts below the national average of 24.8%
Food insecurity9.6% 7.5 pts below the national average of 17.1%
Received food stamps7.6% 6.7 pts below the national average of 14.3%
Hearing disability8% 1.3 pts above the national average of 6.7%
High cholesterol42.6% 6.4 pts above the national average of 36.2%
Housing insecurity8.3% 5.5 pts below the national average of 13.8%
Independent living disability6.9% 1.5 pts below the national average of 8.4%
Lacks transport5.4% 3.8 pts below the national average of 9.2%
Loneliness29.6% 4.8 pts below the national average of 34.4%
Mammography use79.7% 3.8 pts above the national average of 75.9%
Poor mental health (14+ days)13.9% 2.9 pts below the national average of 16.8%
Mobility disability14.2% same as the national average of 14%
Poor physical health (14+ days)13.3% same as the national average of 13.5%
Self-care disability3.4% 0.6 pts below the national average of 4%
Utility shut-off threat5.3% 3.5 pts below the national average of 8.8%
Sleeps under 7 hours28.1% 8.3 pts below the national average of 36.4%
Stroke4% 0.6 pts above the national average of 3.4%
All natural teeth lost7.5% 5.5 pts below the national average of 13%
Vision disability4.1% 1.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments673
People employed6,599
Annual payroll$294,779,000
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 55.6% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 10 census tracts this ZIP code covers
Expected annual loss52 out of 100
Community resilience86.6 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 flooding93.8Relatively High at its worst in this ZIP code
Hurricane92.8Relatively High at its worst in this ZIP code
Drought88.5Relatively Moderate at its worst in this ZIP code
Wildfire83.6Relatively Low at its worst in this ZIP code
Winter weather79.2Relatively High at its worst in this ZIP code
Cold wave75.3Relatively High at its worst in this ZIP code
Ice storm59.7Relatively Moderate at its worst in this ZIP code
Landslide57.1Very Low at its worst in this ZIP code
Strong wind55.7Relatively Moderate at its worst in this ZIP code
Lightning48.9Relatively Moderate at its worst in this ZIP code
Heat wave46.7Relatively Moderate at its worst in this ZIP code
Earthquake36.2Relatively Low at its worst in this ZIP code
Hail33.9Relatively Low at its worst in this ZIP code
River flooding25.7Relatively Low at its worst in this ZIP code
Tornado21.7Very 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$91,293$101,652$78,538
Income per person$51,603$51,689$43,289
Poverty rate7.2%9.3%12.4%
Median home value$362,500$397,700$303,400
Median gross rent$1,398$1,662$1,348
Homeownership81.4%67.5%65%
Bachelor's degree or higher36.1%42.7%35%
Unemployment rate5.1%4.9%5.2%
Works from home12.1%17.2%13.5%
Born outside the US4.6%16.3%13.9%
Median age55.239.338.7
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 stationOCEAN CITY MUNI AP, MD US7 km away
Rain in a year43 in

Average high and low by month

January44.9°F / 27.9°F3.39 in rain
February46.7°F / 29.3°F2.95 in rain
March52.2°F / 35.4°F3.86 in rain
April61.5°F / 44.1°F3 in rain
May70.1°F / 53.4°F3.76 in rain
June79.3°F / 63.3°F3.32 in rain
July84.2°F / 68.4°F3.77 in rain
August82.6°F / 67.1°F3.83 in rain
September77.1°F / 61.1°F3.93 in rain
October67.5°F / 49.2°F4.04 in rain
November57.5°F / 38.8°F3.18 in rain
December49.5°F / 31.9°F3.6 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 supermarket8% of this ZIP code's area
Far from a supermarket47% of this ZIP code's area
No vehicle and far from a supermarket8% 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%.

Worcester 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 vulnerability33more vulnerable than 33% of US census tracts
Socioeconomic status39more vulnerable than 39% of US census tracts
Household characteristics26more vulnerable than 26% of US census tracts
Racial and ethnic minority status29more vulnerable than 29% of US census tracts
Housing type and transport42more vulnerable than 42% of US census tracts
Walkability5.8 out of 20Below average
Nearby ZIP codes

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

21862 Showell, MD6.4 km away
21842 Ocean City, MD9 km away
21843 Ocean City, MD9 km away
21813 Bishopville, MD9.1 km away
21872 Whaleyville, MD10.9 km away
19975 Selbyville, DE13.4 km away
21841 Newark, MD14.2 km away
21874 Willards, MD15.6 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.

Worcester County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area101.5 sq mi
Water area12.47 sq mi
Population density239 people per sq mi
Latitude, longitude38.3475, -75.1866

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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