21631 ZIP Code — East New Market, MD

Dorchester County, Maryland

ZIP code 21631 is located in East New Market, Maryland, within Dorchester County. It covers approximately 24.15 square miles and serves a population of 2,787 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443.

About ZIP code 21631

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $241,600. Owner-occupancy is high at 83%, well above the national average.

Median household income is $67,181. The poverty rate of 6% is below the national average. 48% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.

Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.

Overall, ZIP code 21631 reflects a community defined by high homeownership and a significant Social Security-dependent population.

2,787
population
24.15
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
21631 ZIP code map
Cities in ZIP code 21631

Below are the cities the US Postal Service accepts for ZIP code 21631. Using any city not on this list may result in mail delivery delays.

City Status
East New Market Acceptable
East New Market Preferred
Nearby ZIP codes
21835 Linkwood (3.3 mi) 21643 Hurlock (5.2 mi) 21659 Rhodesdale (6.8 mi) 21673 Trappe (7.9 mi) 21655 Preston (11.5 mi) 21837 Mardela Springs (11.7 mi) 21613 Cambridge (11.8 mi) 21632 Federalsburg (12.1 mi) 21654 Oxford (12.6 mi) 21869 Vienna (13.2 mi) 21677 Woolford (14.2 mi) 21601 Easton (15.5 mi)
Demographics updated 05/2026
Population
Total population 2,787
Population density 115 / sq mi
State FIPS 24
County FIPS 019
Geography
Land area 24.15 sq mi
Water area 3.83 sq mi
Latitude 38.5850
Longitude -75.9350
Timezone Eastern (ET)
Area code 410/443
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 35.9% 48.7% 28.2%
$50k – $100k 31.2% 30.4% 28.2%
$100k – $200k 27.0% 17.3% 30.1%
Over $200k 5.9% 3.7% 13.4%

Demographics & statistics

2,787
Population
115
People per sq mi
47.6
Median age
$67,181
Median household income
$34,991
Per capita income
$241,600
Median home value
$1,488
Median monthly rent
82.5%
Home ownership
5.9%
Poverty rate
4.6%
Unemployment
970
Housing units
21.8%
Bachelor's or higher

Age distribution

Male Female
48
Under 5
59
109
5–9
136
71
10–14
89
58
15–19
71
50
20–24
63
119
25–34
147
129
35–44
160
197
45–54
244
87
55–59
107
138
60–64
171
142
65–74
176
88
75–84
110
8
85+
10
← Male
Female →

Age summary

GroupCount%
Under 1863322.7%
18 and over2,15477.3%
65 and over53419.2%
Median age47.6 years

Race & ethnicity

White 78.3%
Hispanic or Latino 6.3%
Other race 6.1%
Two or more races 5%
Black or African American 4.2%
GroupCount%
White2,32978.3%
Hispanic or Latino1866.3%
Other race1826.1%
Two or more races1505%
Black or African American1264.2%

Household income

Income range This ZIP County avg State avg
Under $50k 35.9% 48.7% 28.2%
$50k – $100k 31.2% 30.4% 28.2%
$100k – $200k 27.0% 17.3% 30.1%
Over $200k 5.9% 3.7% 13.4%
Under $10k 2.8%
$10k–$15k 0.5%
$15k–$25k 6.6%
$25k–$35k 6.5%
$35k–$50k 9.9%
$50k–$75k 27.4%
$75k–$100k 13.8%
$100k–$150k 18.8%
$150k–$200k 7.5%
$200k+ 6.3%
Range% of households
Under $10k2.8%
$10k–$15k0.5%
$15k–$25k6.6%
$25k–$35k6.5%
$35k–$50k9.9%
$50k–$75k27.4%
$75k–$100k13.8%
$100k–$150k18.8%
$150k–$200k7.5%
$200k+6.3%
Median income$67,181

Housing

Home values

Under $50k 6.1%
$50k–$100k 5.8%
$100k–$150k 9.0%
$150k–$200k 15.1%
$200k–$300k 22.8%
$300k–$500k 28.8%
$500k–$1M 11.5%
$1M+ 0.9%

Housing overview

MetricValue
Median home value$241,600
Median rent / month$1,488
Owner occupied82.5%
Renter occupied17.5%
Vacant10.3%
Single-family detached84.5%
Large apartment buildings0.2%
Mobile homes8.3%
Median rooms6.7
Avg household size (owned)2.75

Year built

Era%
2020 or later0.1%
2010–20192.3%
2000–200916.9%
1990–199918.1%
1980–19896.7%
1970–197917.4%
1960–196910.6%
1950–19599.7%
1940–19491.3%
1939 or earlier16.9%

Bedrooms

Size% of units
No bedroom (studio)0.2%
1 bedroom3.0%
2 bedrooms18.2%
3 bedrooms54.3%
4 bedrooms15.8%
5+ bedrooms8.5%

Vehicles per household

Vehicles% of households
No vehicle1.4%
1 vehicle21.2%
2 vehicles33.6%
3 or more43.9%

Heating fuel

Fuel type%
Utility gas6.0%
Electricity55.5%
Propane / LP gas11.4%
Fuel oil18.4%
Wood8.7%

Households & families

Household typeCount%
Married-couple family54452.7%
Cohabiting couple555.3%
Male householder, no spouse898.6%
Female householder, no spouse34533.4%
Households with children under 1834032.9%
Households with seniors (65+)40339.0%
Average household size2.69

Marital status

StatusMaleFemale
Never married30.3%14.4%
Married54.5%45.7%
Separated2.0%0.0%
Widowed3.9%15.4%
Divorced9.3%24.5%

Education

Less than 9th grade 6.0%
Some HS, no diploma 6.6%
HS graduate 46.4%
Some college, no degree 16.1%
Associate's degree 3.1%
Bachelor's degree 13.3%
Graduate / professional 8.5%
Metric%
HS diploma or higher87.5%
Bachelor's or higher21.8%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool00.0%
Kindergarten244.2%
Elementary school34860.5%
High school15426.8%
College / grad school498.5%

Employment

Industry of employment

Education & healthcare 26.4%
Public administration 11.6%
Retail trade 10.4%
Finance & real estate 9.8%
Manufacturing 9.4%
Agriculture & mining 5.8%
Arts, food & hospitality 5.6%
Transportation & utilities 5.4%
Professional & management 5.1%
Other services 4.1%
Construction 3.7%
Wholesale trade 1.9%
Information 0.7%

Occupation

Category%
Management, business & arts34.2%
Service13.6%
Sales & office27.3%
Natural resources & construction8.8%
Production & transportation16.2%

Employment type

Type%
Private sector62.2%
Government30.5%
Self-employed6.4%
Unpaid family workers0.9%

Commute

Method%
Drive alone82.3%
Carpool6.9%
Public transit0.5%
Walk1.5%
Work from home8.7%
Other means0.0%
Avg commute (minutes)22.3

Poverty

All people 5.9%
Under 18 years 8.8%
18 and over 5.1%
Married-couple families 1.3%
Female-led households 9.9%

Income support

Source% of households
Social Security47.7%
Retirement income36.9%
Supplemental Security4.8%
Cash public assistance1.6%
Food stamps / SNAP7.9%

Health indicators

Condition%
Obesity36.1%
High blood pressure37.9%
High cholesterol34.9%
Diabetes11.5%
Heart disease6.9%
Stroke3.3%
Asthma9.8%
Arthritis28.2%
Kidney disease3.1%
Pulmonary disease7.4%
Cancer7.8%
Behavior / access%
Smoking16.9%
Binge drinking14.9%
No physical activity23.9%
Less than 7 hrs sleep31.8%
Depression19.7%
Fair or poor health13.7%
Poor mental health13.7%
Poor physical health9.5%
No health insurance10.2%
Visited doctor (checkup)79.6%
Visited dentist64.1%
Cholesterol screening92.4%
Teeth loss12.0%

Veterans & disability

VeteransCount%
Civilian veterans1979.1%
Disability%
Any disability11.4%
Under 182.1%
18–64 years8.4%
65 and over31.5%

Health insurance coverage

Type%
Private insurance75.5%
Public insurance37.6%
No insurance5.6%
Uninsured under 191.3%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only2,68096.2%
Spanish652.4%
Other Indo-European652.4%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)2,64494.9%
Born in same state2,64494.9%
Born in different state2,10575.5%
Foreign born00.0%
Naturalized citizen1435.1%
Not a US citizen10372.0%

Ancestry

AncestryCount%
Arab78228.1%
French31811.4%
Italian1776.4%
AncestryCount%
Norwegian160.6%
Polish60.2%
English10%

Technology access

Metric% of households
Computer access37.1%
Internet access88.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 21631

What city is ZIP code 21631 in?

ZIP code 21631 is primarily assigned to East New Market, Maryland.

What county is ZIP code 21631 in?

ZIP code 21631 falls within Dorchester County, Maryland.

Does ZIP code 21631 have a large retiree population?

48% of households in ZIP code 21631 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 21631 mostly owner-occupied?

83% of occupied units in ZIP code 21631 are owner-occupied, well above the national average.

Does ZIP code 21631 have a large veteran population?

9% of civilians in ZIP code 21631 are veterans, above the national average of ~7%.

What is the population of ZIP code 21631?

ZIP code 21631 has an estimated population of 2,787 residents, with a density of 115 people per square mile.

What timezone is ZIP code 21631 in?

ZIP code 21631 observes the EST timezone.

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