Sunderland ZIP Codes — Calvert County, MD

There is one unique ZIP code in Sunderland, Maryland and it is 20689. Area code: 240.

ZIP codes

7.71

sq mi land

0.02

sq mi water

240

area code

Sunderland, MD ZIP code map

About Sunderland, MD

Sunderland is a charming town located in Calvert County, Maryland. Known for its serene environment and community spirit, the town offers a quaint escape from the hustle and bustle of urban life. Sunderland serves as a tight-knit community where residents enjoy the perks of rural living while still being in proximity to larger cities.

Location & geography

Geographically, Sunderland is positioned in the southern part of Maryland, approximately 10 miles west of the Patuxent River. Nearby cities include Upper Marlboro, roughly 25 miles to the north, and Prince Frederick, about 12 miles to the south. The town covers a land area of 7.71 square miles, with a minor water area measuring 0.02 square miles.

Community & economy

The character of Sunderland is marked by its close-knit community and rural charm, where many residents engage in agriculture and local businesses. The daily life in Sunderland revolves around family and community activities, with residents often gathering for local events and festivals. While the town itself is small, it contributes to the larger Calvert County economy, which is driven by industries such as education and retail.

Transportation

Sunderland is conveniently accessible via nearby highways, including MD-4 and MD-2, which connect residents to larger metropolitan areas. The nearest major airport is the New Carrolton Airport, located about 30 miles away, while public transit options are limited, enhancing the town’s quiet, suburban atmosphere.

History

Sunderland was historically founded as a rural farming community, with agriculture being a cornerstone of its early economy. Over the years, it has retained its small-town charm and sense of community, despite being part of a gradually urbanizing Calvert County. Notable events in the town's history showcase the resilience and adaptability of its residents through changes in industry and development.

Did you know?

Sunderland is home to a unique blend of suburban and rural lifestyles, allowing residents to enjoy both agricultural experiences and commuter conveniences. One surprising fact about Sunderland is its close-knit community events that bring residents together, fostering a strong sense of belonging.

ZIP codes for Sunderland, MD (1)

ZIP code	City	County	Map
20689	Sunderland	Calvert	View map

Demographics & statistics

1,884

Population

47.6

Median age

$174,750

Median household income

$66,312

Per capita income

$430,300

Median home value

Median monthly rent

89.2%

Home ownership

3.6%

Poverty rate

0.0%

Unemployment

540

Housing units

32.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

117

35–44

278

45–54

203

110

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	383	20.3%
18 and over	1,501	79.7%
65 and over	252	13.4%
Median age	47.6 years

Race & ethnicity

White 77.1%

Black or African American 20%

Hispanic or Latino 1.3%

Two or more races 1%

Other race 0.5%

Group	Count	%
White	1,472	77.1%
Black or African American	382	20%
Hispanic or Latino	25	1.3%
Two or more races	20	1%
Other race	10	0.5%

Household income

Under $10k 7.0%

$50k–$75k 7.2%

$75k–$100k 18.9%

$100k–$150k 9.1%

$150k–$200k 12.4%

$200k+ 45.4%

Range	% of households
Under $10k	7.0%
$50k–$75k	7.2%
$75k–$100k	18.9%
$100k–$150k	9.1%
$150k–$200k	12.4%
$200k+	45.4%
Median income	$174,750

Housing

Home values

$50k–$100k 14.3%

$150k–$200k 1.5%

$200k–$300k 17.3%

$300k–$500k 36.6%

$500k–$1M 30.3%

Housing overview

Metric	Value
Median home value	$430,300
Median rent / month	$0
Owner occupied	89.2%
Renter occupied	10.8%
Vacant	3.5%
Single-family detached	91.7%
Large apartment buildings	0.0%
Mobile homes	5.0%
Median rooms	7.9
Avg household size (owned)	3.09

Year built

Era	%
2020 or later	0.0%
2010–2019	6.8%
2000–2009	13.3%
1990–1999	6.5%
1980–1989	29.4%
1970–1979	22.6%
1960–1969	4.5%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	17.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	1.3%
3 bedrooms	37.8%
4 bedrooms	44.3%
5+ bedrooms	16.6%

Vehicles per household

Vehicles	% of households
No vehicle	5.2%
1 vehicle	6.9%
2 vehicles	26.5%
3 or more	61.5%

Heating fuel

Fuel type	%
Utility gas	12.7%
Electricity	71.0%
Propane / LP gas	5.2%
Fuel oil	8.9%

Households & families

Household type	Count	%
Married-couple family	407	69.9%
Cohabiting couple	6	1.0%
Male householder, no spouse	44	7.6%
Female householder, no spouse	125	21.5%
Households with children under 18	217	37.3%
Households with seniors (65+)	174	29.9%
Average household size	3.24

Marital status

Status	Male	Female
Never married	27.6%	21.6%
Married	59.9%	61.5%
Separated	3.2%	3.9%
Widowed	0.0%	9.5%
Divorced	9.4%	3.5%

Education

Less than 9th grade 0.2%

Some HS, no diploma 2.1%

HS graduate 32.2%

Some college, no degree 28.3%

Associate's degree 4.4%

Bachelor's degree 13.5%

Graduate / professional 19.3%

Metric	%
HS diploma or higher	97.7%
Bachelor's or higher	32.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	59	12.7%
Kindergarten	11	2.4%
Elementary school	127	27.4%
High school	188	40.5%
College / grad school	79	17.0%

Employment

Industry of employment

Education & healthcare 21.5%

Transportation & utilities 15.1%

Public administration 14.8%

Finance & real estate 10.6%

Retail trade 10.4%

Arts, food & hospitality 10.0%

Construction 7.8%

Professional & management 6.0%

Manufacturing 1.7%

Other services 1.1%

Agriculture & mining 0.9%

Occupation

Category	%
Management, business & arts	48.3%
Service	16.0%
Sales & office	8.5%
Natural resources & construction	7.7%
Production & transportation	19.5%

Employment type

Type	%
Private sector	71.1%
Government	27.0%
Self-employed	1.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.6%
Carpool	8.8%
Public transit	0.5%
Walk	0.0%
Other means	0.9%
Avg commute (minutes)	43.4

Poverty

All people 3.6%

Under 18 years 4.3%

18 and over 3.4%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	31.4%
Retirement income	36.6%
Supplemental Security	5.7%
Cash public assistance	0.0%
Food stamps / SNAP	10.8%

Health indicators

Condition	%
High blood pressure	34.1%
High cholesterol	34.5%
Heart disease	4.9%
Stroke	2.7%
Asthma	9.8%
Arthritis	26.2%
Kidney disease	2.5%
Pulmonary disease	5.0%
Cancer	6.5%

Behavior / access	%
Binge drinking	14.5%
No physical activity	19.0%
Less than 7 hrs sleep	36.2%
Fair or poor health	10.5%
Poor mental health	12.9%
Poor physical health	7.5%
No health insurance	8.8%
Visited doctor (checkup)	77.1%
Visited dentist	71.8%
Cholesterol screening	93.6%
Teeth loss	9.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	248	17.1%

Disability	%
Any disability	9.3%
Under 18	1.6%
18–64 years	8.5%
65 and over	24.6%

Health insurance coverage

Type	%
Private insurance	80.0%
Public insurance	31.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,799	95.5%
Spanish	27	1.5%
Other Indo-European	27	1.5%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,884	100.0%
Born in same state	1,884	100.0%
Born in different state	1,226	65.1%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	280	14.9%
Italian	274	14.5%
German	67	3.6%

Ancestry	Count	%
Arab	60	3.2%
English	23	1.2%
Polish	7	0.4%

Technology access

Metric	% of households
Computer access	30.9%
Internet access	94.8%

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

Frequently asked questions

What ZIP codes does Sunderland, MD have?

Sunderland, MD has one ZIP code: 20689. Each ZIP code serves a distinct delivery area within the city and surrounding region.