Prince Frederick ZIP Code List — Calvert County, MD

There is one unique ZIP code in Prince Frederick, Maryland and it is 20678. Area code: 443/410.

ZIP codes

44.87

sq mi land

9.11

sq mi water

443/410

area code

Prince Frederick, MD ZIP code map

About Prince Frederick, MD

Prince Frederick is a charming town located in Calvert County, Maryland. This community serves as the county seat, offering a blend of rural charm and suburban conveniences. With its picturesque landscapes and friendly atmosphere, Prince Frederick attracts residents and visitors alike.

Location & geography

Situated in Southern Maryland, Prince Frederick is approximately 20 miles north of US Route 301 and 25 miles south of Washington, D.C. The town is surrounded by beautiful natural landscapes, with 44.87 square miles of land and 9.11 square miles of water. Nearby cities include Lusby, about 7 miles to the south, Dunkirk approximately 6 miles to the north, and Chesapeake Beach around 10 miles to the east.

Community & economy

Prince Frederick is characterized by its small-town feel, welcoming residents, and strong community ties. The local economy primarily revolves around retail, agriculture, and services aimed at supporting the surrounding rural areas. Daily life in Prince Frederick is marked by a blend of small businesses and local amenities, with community events often bringing residents together.

Transportation

The town is accessible via major highways, including Maryland Route 2 and Maryland Route 4, facilitating connections to neighboring areas. The nearest major airport is the Southern Maryland Regional Airport, located about 15 miles away, providing limited commercial flights. Public transportation options are available but limited, with primarily local services within Calvert County.

History

Prince Frederick was established in the 18th century and has since evolved as a hub for Calvert County's administrative functions. Historically, the area was known for its agriculture and fishing industries, which played significant roles in the local economy. Over the years, the town has witnessed various developments, including the construction of important local government buildings and community spaces.

Did you know?

One surprising fact about Prince Frederick is that it is home to the historic St. Paul’s Episcopal Church, which dates back to the early 19th century. Additionally, the town has maintained its rural charm while accommodating modern developments, making it a unique blend of old and new.

ZIP codes for Prince Frederick, MD (1)

ZIP code	City	County	Map
20678	Prince Frederick	Calvert	View map

Demographics & statistics

12,874

Population

38.5

Median age

$115,710

Median household income

$49,562

Per capita income

$397,200

Median home value

$1,163

Median monthly rent

78.9%

Home ownership

9.1%

Poverty rate

3.5%

Unemployment

4,018

Housing units

29.4%

Bachelor's or higher

Age distribution

Male Female

408

Under 5

434

306

5–9

326

399

10–14

423

388

15–19

413

535

20–24

569

766

25–34

813

932

35–44

991

795

45–54

845

440

55–59

468

275

60–64

292

610

65–74

649

289

75–84

307

85+

104

← Male

Female →

Age summary

Group	Count	%
Under 18	2,719	21.1%
18 and over	10,155	78.9%
65 and over	2,056	16.0%
Median age	38.5 years

Race & ethnicity

White 68.7%

Black or African American 16.1%

Two or more races 6.8%

Hispanic or Latino 4.5%

Asian 2.2%

Other race 1.5%

American Indian / Alaska Native 0.2%

Group	Count	%
White	9,262	68.7%
Black or African American	2,167	16.1%
Two or more races	922	6.8%
Hispanic or Latino	613	4.5%
Asian	298	2.2%
Other race	203	1.5%
American Indian / Alaska Native	22	0.2%

Household income

Under $10k 3.4%

$10k–$15k 4.4%

$15k–$25k 4.9%

$25k–$35k 4.6%

$35k–$50k 5.9%

$50k–$75k 9.6%

$75k–$100k 11.0%

$100k–$150k 20.5%

$150k–$200k 12.9%

$200k+ 22.7%

Range	% of households
Under $10k	3.4%
$10k–$15k	4.4%
$15k–$25k	4.9%
$25k–$35k	4.6%
$35k–$50k	5.9%
$50k–$75k	9.6%
$75k–$100k	11.0%
$100k–$150k	20.5%
$150k–$200k	12.9%
$200k+	22.7%
Median income	$115,710

Housing

Home values

Under $50k 1.9%

$50k–$100k 0.5%

$100k–$150k 0.3%

$150k–$200k 3.2%

$200k–$300k 16.2%

$300k–$500k 49.2%

$500k–$1M 26.3%

$1M+ 2.5%

Housing overview

Metric	Value
Median home value	$397,200
Median rent / month	$1,163
Owner occupied	78.9%
Renter occupied	21.1%
Vacant	6.2%
Single-family detached	77.0%
Large apartment buildings	6.9%
Mobile homes	0.1%
Median rooms	6.4
Avg household size (owned)	2.80

Year built

Era	%
2020 or later	2.3%
2010–2019	15.5%
2000–2009	19.9%
1990–1999	15.0%
1980–1989	11.4%
1970–1979	15.2%
1960–1969	6.3%
1950–1959	4.3%
1940–1949	3.1%
1939 or earlier	6.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	6.0%
2 bedrooms	15.6%
3 bedrooms	39.8%
4 bedrooms	27.1%
5+ bedrooms	11.2%

Vehicles per household

Vehicles	% of households
No vehicle	5.6%
1 vehicle	22.9%
2 vehicles	32.4%
3 or more	39.0%

Heating fuel

Fuel type	%
Utility gas	12.4%
Electricity	58.1%
Propane / LP gas	7.7%
Fuel oil	13.1%
Wood	7.9%
Solar	0.3%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	2,463	52.4%
Cohabiting couple	201	4.3%
Male householder, no spouse	793	16.9%
Female householder, no spouse	1,240	26.4%
Households with children under 18	1,622	34.5%
Households with seniors (65+)	1,443	30.7%
Average household size	2.67

Marital status

Status	Male	Female
Never married	38.4%	30.6%
Married	53.9%	48.2%
Separated	0.4%	1.2%
Widowed	1.8%	9.1%
Divorced	5.6%	10.9%

Education

Less than 9th grade 2.0%

Some HS, no diploma 6.5%

HS graduate 29.6%

Some college, no degree 22.6%

Associate's degree 9.9%

Bachelor's degree 17.0%

Graduate / professional 12.3%

Metric	%
HS diploma or higher	91.5%
Bachelor's or higher	29.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	242	8.6%
Kindergarten	99	3.5%
Elementary school	1,068	37.8%
High school	604	21.4%
College / grad school	809	28.7%

Employment

Industry of employment

Education & healthcare 18.1%

Construction 16.6%

Public administration 16.5%

Arts, food & hospitality 8.8%

Professional & management 8.3%

Transportation & utilities 7.6%

Retail trade 5.7%

Other services 5.5%

Finance & real estate 5.1%

Manufacturing 3.4%

Wholesale trade 2.0%

Agriculture & mining 1.7%

Information 0.8%

Occupation

Category	%
Management, business & arts	37.7%
Service	18.6%
Sales & office	23.2%
Natural resources & construction	14.2%
Production & transportation	6.2%

Employment type

Type	%
Private sector	65.6%
Government	27.4%
Self-employed	6.4%
Unpaid family workers	0.6%

Commute

Method	%
Drive alone	77.4%
Carpool	6.9%
Public transit	0.6%
Walk	1.1%
Other means	2.1%
Avg commute (minutes)	41.2

Poverty

All people 9.1%

Under 18 years 11.6%

18 and over 8.4%

Married-couple families 2.4%

Female-led households 14.9%

Income support

Source	% of households
Social Security	29.9%
Retirement income	30.7%
Supplemental Security	6.3%
Cash public assistance	2.4%
Food stamps / SNAP	10.4%

Health indicators

Condition	%
High blood pressure	33.5%
High cholesterol	33.3%
Heart disease	5.2%
Stroke	2.8%
Asthma	10.3%
Arthritis	26.7%
Kidney disease	2.6%
Pulmonary disease	5.9%
Cancer	6.5%

Behavior / access	%
Binge drinking	15.2%
No physical activity	21.1%
Less than 7 hrs sleep	37.1%
Fair or poor health	11.9%
Poor mental health	14.4%
Poor physical health	8.3%
No health insurance	10.3%
Visited doctor (checkup)	75.8%
Visited dentist	67.6%
Cholesterol screening	91.8%
Teeth loss	11.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	823	8.2%

Disability	%
Any disability	9.7%
Under 18	2.9%
18–64 years	6.8%
65 and over	31.1%

Health insurance coverage

Type	%
Private insurance	81.6%
Public insurance	28.6%
Uninsured under 19	1.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	12,032	93.5%
Spanish	198	1.6%
Other Indo-European	63	0.5%
Asian & Pacific Islander	26	0.2%
Other languages	109	0.9%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,184	94.6%
Born in same state	11,867	92.2%
Born in different state	7,353	57.1%
Foreign born	317	2.5%
Naturalized citizen	690	5.4%
Not a US citizen	533	77.2%

Ancestry

Ancestry	Count	%
French	1,926	15%
Italian	1,773	13.8%
Arab	325	2.5%
English	100	0.8%
Polish	82	0.6%

Ancestry	Count	%
Irish	62	0.5%
German	49	0.4%
Norwegian	14	0.1%
Dutch	6	0%

Technology access

Metric	% of households
Computer access	36.5%
Internet access	94.9%

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

Frequently asked questions

What is the ZIP code for Prince Frederick, MD?

Prince Frederick, MD has one ZIP code: 20678.

What is the main ZIP code for Prince Frederick, MD?

The primary ZIP code for Prince Frederick, MD is 20678. The city uses area code 443 or 410 for phone service.

What county is Prince Frederick, MD in?

Prince Frederick is located in Calvert County, Maryland.

How many ZIP codes are in Prince Frederick, MD?

Prince Frederick, MD has 1 ZIP code.

What ZIP code should I use for mail addressed to downtown Prince Frederick near the Calvert County Courthouse?

Mail to downtown Prince Frederick, including addresses near the historic Calvert County Courthouse, should use ZIP code 20678.

What is the ZIP code for Prince Frederick's waterfront area along the Patuxent River?

The Prince Frederick waterfront area and properties along the Patuxent River are located in ZIP code 20678.