Port Republic ZIP Codes — Calvert County, MD

There is one unique ZIP code in Port Republic, Maryland and it is 20676. Area code: 443/410.

ZIP codes

14.43

sq mi land

1.34

sq mi water

443/410

area code

Port Republic, MD ZIP code map

About Port Republic, MD

Port Republic is a charming small town located in Calvert County, Maryland. Known for its picturesque landscapes, it offers a peaceful atmosphere and a close-knit community. This quaint locality serves as a serene retreat while still being accessible to the bustling metropolitan areas of Maryland.

Location & geography

Port Republic is situated in Southern Maryland and covers a land area of 14.43 square miles, with an additional 1.34 square miles of water. The town is located approximately 10 miles southeast of Prince Frederick, the county seat, and is situated near the beautiful Patuxent River. Its terrain consists of a mix of woodland and waterways, providing stunning natural scenery.

Community & economy

The community of Port Republic embodies a friendly and welcoming atmosphere typical of small-town life in Maryland. Many residents are involved in local industries such as agriculture and eco-tourism, with the surrounding area being rich in natural resources. Daily life in Port Republic often revolves around community events and outdoor activities that showcase the local culture.

Transportation

Transportation in Port Republic is primarily served by local roads, with access to major highways like Route 4 and Route 231 facilitating travel to nearby regions. The nearest airports are in neighboring cities, with the closest being the Southern Maryland Regional Airport. Public transit options are limited, encouraging a strong reliance on personal vehicles for commuters.

History

Port Republic was founded in the late 19th century and has retained much of its historical charm over the years. The town's economy historically relied on maritime industries, given its proximity to water, which shaped its growth and development. Notable events in its history include the establishment of community gathering spaces that foster local culture and camaraderie.

Did you know?

A surprising fact about Port Republic is its deep ties to environmental conservation efforts, often promoting eco-tourism as a means of preserving its natural beauty. Additionally, despite its small size, the town has a rich history that includes connections to the maritime industry, which played a significant role in its development.

ZIP codes for Port Republic, MD (1)

ZIP code	City	County	Map
20676	Port Republic	Calvert	View map

Demographics & statistics

2,897

Population

50.0

Median age

$161,071

Median household income

$59,027

Per capita income

$449,200

Median home value

$1,633

Median monthly rent

87.5%

Home ownership

7.0%

Poverty rate

2.6%

Unemployment

1,241

Housing units

37.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

113

15–19

100

20–24

197

25–34

173

128

35–44

113

216

45–54

190

111

55–59

197

60–64

173

150

65–74

131

143

75–84

126

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	442	15.3%
18 and over	2,455	84.7%
65 and over	591	20.4%
Median age	50.0 years

Race & ethnicity

White 86.5%

Black or African American 6.3%

Two or more races 5.1%

Hispanic or Latino 2.1%

Group	Count	%
White	2,559	86.5%
Black or African American	186	6.3%
Two or more races	152	5.1%
Hispanic or Latino	61	2.1%

Household income

Under $10k 0.7%

$10k–$15k 0.5%

$15k–$25k 6.8%

$25k–$35k 2.1%

$35k–$50k 8.5%

$50k–$75k 6.7%

$75k–$100k 5.5%

$100k–$150k 16.4%

$150k–$200k 33.1%

$200k+ 19.8%

Range	% of households
Under $10k	0.7%
$10k–$15k	0.5%
$15k–$25k	6.8%
$25k–$35k	2.1%
$35k–$50k	8.5%
$50k–$75k	6.7%
$75k–$100k	5.5%
$100k–$150k	16.4%
$150k–$200k	33.1%
$200k+	19.8%
Median income	$161,071

Housing

Home values

$150k–$200k 5.7%

$200k–$300k 3.8%

$300k–$500k 60.1%

$500k–$1M 30.4%

Housing overview

Metric	Value
Median home value	$449,200
Median rent / month	$1,633
Owner occupied	87.5%
Renter occupied	12.5%
Vacant	16.0%
Single-family detached	95.0%
Large apartment buildings	0.0%
Mobile homes	5.0%
Median rooms	7.1
Avg household size (owned)	2.50

Year built

Era	%
2020 or later	0.0%
2010–2019	4.9%
2000–2009	15.2%
1990–1999	19.6%
1980–1989	12.8%
1970–1979	14.6%
1960–1969	9.5%
1950–1959	12.8%
1940–1949	5.3%
1939 or earlier	5.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	1.7%
2 bedrooms	17.0%
3 bedrooms	34.1%
4 bedrooms	36.6%
5+ bedrooms	10.6%

Vehicles per household

Vehicles	% of households
No vehicle	0.8%
1 vehicle	14.6%
2 vehicles	31.5%
3 or more	53.1%

Heating fuel

Fuel type	%
Utility gas	5.0%
Electricity	55.6%
Propane / LP gas	10.8%
Fuel oil	16.7%
Wood	11.9%

Households & families

Household type	Count	%
Married-couple family	672	57.7%
Cohabiting couple	68	5.8%
Male householder, no spouse	216	18.6%
Female householder, no spouse	208	17.9%
Households with children under 18	238	20.4%
Households with seniors (65+)	463	39.8%
Average household size	2.48

Marital status

Status	Male	Female
Never married	34.0%	22.8%
Married	52.8%	51.0%
Separated	2.0%	2.5%
Widowed	6.2%	15.6%
Divorced	5.0%	8.1%

Education

Less than 9th grade 0.2%

Some HS, no diploma 3.8%

HS graduate 27.7%

Some college, no degree 21.1%

Associate's degree 9.7%

Bachelor's degree 17.3%

Graduate / professional 20.3%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	37.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	18	3.6%
Kindergarten	0	0.0%
Elementary school	183	36.8%
High school	247	49.7%
College / grad school	49	9.9%

Employment

Industry of employment

Education & healthcare 21.2%

Public administration 20.0%

Construction 18.2%

Other services 9.1%

Professional & management 8.7%

Finance & real estate 5.0%

Transportation & utilities 4.5%

Retail trade 4.3%

Arts, food & hospitality 3.7%

Manufacturing 2.2%

Agriculture & mining 1.7%

Information 0.9%

Wholesale trade 0.5%

Occupation

Category	%
Management, business & arts	51.0%
Service	10.6%
Sales & office	10.3%
Natural resources & construction	21.8%
Production & transportation	6.3%

Employment type

Type	%
Private sector	63.0%
Government	30.9%
Self-employed	4.9%
Unpaid family workers	1.2%

Commute

Method	%
Drive alone	76.2%
Carpool	6.8%
Public transit	2.8%
Walk	1.1%
Other means	0.0%
Avg commute (minutes)	43.7

Poverty

All people 7.0%

Under 18 years 8.9%

18 and over 6.7%

Married-couple families 5.7%

Female-led households 36.4%

Income support

Source	% of households
Social Security	35.2%
Retirement income	33.4%
Supplemental Security	0.5%
Cash public assistance	3.4%
Food stamps / SNAP	2.7%

Health indicators

Condition	%
High blood pressure	33.4%
High cholesterol	34.9%
Heart disease	5.3%
Stroke	2.7%
Asthma	9.8%
Arthritis	27.1%
Kidney disease	2.5%
Pulmonary disease	5.8%
Cancer	6.7%

Behavior / access	%
Binge drinking	15.4%
No physical activity	19.8%
Less than 7 hrs sleep	35.9%
Fair or poor health	11.0%
Poor mental health	13.6%
Poor physical health	8.1%
No health insurance	9.2%
Visited doctor (checkup)	75.7%
Visited dentist	70.1%
Cholesterol screening	92.9%
Teeth loss	9.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	289	11.8%

Disability	%
Any disability	10.1%
Under 18	0.0%
18–64 years	5.8%
65 and over	31.1%

Health insurance coverage

Type	%
Private insurance	91.2%
Public insurance	26.4%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,791	96.3%
Spanish	10	0.4%
Other Indo-European	10	0.4%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,849	98.3%
Born in same state	2,823	97.4%
Born in different state	1,545	53.3%
Foreign born	26	0.9%
Naturalized citizen	48	1.7%
Not a US citizen	48	100.0%

Ancestry

Ancestry	Count	%
Italian	550	19%
French	487	16.8%
Arab	301	10.4%

Ancestry	Count	%
English	40	1.4%
Polish	31	1.1%

Technology access

Metric	% of households
Computer access	40.2%
Internet access	97.9%

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

Frequently asked questions

What ZIP codes does Port Republic, MD have?

Port Republic, MD has one ZIP code: 20676. Each ZIP code serves a distinct delivery area within the city and surrounding region.