Rock Hall ZIP Codes — Kent County, MD

There is one unique ZIP code in Rock Hall, Maryland and it is 21661. Area code: 410/667.

ZIP codes

33.04

sq mi land

22.03

sq mi water

410/667

area code

Rock Hall, MD ZIP code map

About Rock Hall, MD

Rock Hall is a charming town located in Kent County, Maryland. Nestled along the eastern shore of the Chesapeake Bay, this waterfront community is known for its picturesque landscapes and rich maritime heritage. Rock Hall boasts a welcoming atmosphere where residents and visitors alike can enjoy the beauty of nature and participate in various local activities.

Location & geography

Rock Hall is situated on the eastern shore of Maryland, approximately 15 miles from Chestertown and 25 miles from Easton. The town encompasses a land area of 33.04 square miles and is surrounded by water, with a water area covering 22.03 square miles. This unique geography provides residents with scenic views and recreational opportunities related to the Chesapeake Bay.

Community & economy

The character of Rock Hall is defined by its laid-back, small-town vibe, where community events often bring neighbors together. The local economy is primarily driven by tourism, fishing, and agriculture, making the town a hub for seasonal visitors and outdoor enthusiasts. Daily life in Rock Hall is enriched by its friendly community spirit, with numerous festivals and events celebrating the town's culture and heritage.

Transportation

Rock Hall is accessible via several local roads and is relatively close to Route 20, which connects to other parts of Kent County. The nearest major airport is the Easton Airport, which is about 25 miles away, providing regional air service. Public transportation options are limited, making personal vehicles the preferred method of travel for residents.

History

Rock Hall was founded in the 18th century and has historically been a center for the seafood industry, particularly crabbing and oystering. Over the years, the town has experienced growth through tourism, drawing visitors interested in the area’s rich maritime history. Notable events include the annual Rock Hall Fireworks Festival, which celebrates local culture and attracts many visitors each summer.

Did you know?

A surprising fact about Rock Hall is that it is home to a cluster of historical sites, including a preserved Victorian-era home that offers insights into the town's rich past. Additionally, Rock Hall's beautiful waterfront area is not only scenic but also serves as a prime location for various water-based activities, such as sailing and fishing.

ZIP codes for Rock Hall, MD (1)

ZIP code	City	County	Map
21661	Rock Hall	Kent	View map

Demographics & statistics

2,571

Population

59.7

Median age

$77,875

Median household income

$49,219

Per capita income

$238,400

Median home value

$1,099

Median monthly rent

72.7%

Home ownership

11.5%

Poverty rate

4.1%

Unemployment

1,459

Housing units

33.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

121

25–34

144

35–44

118

45–54

55–59

143

60–64

170

241

65–74

284

144

75–84

170

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	338	13.1%
18 and over	2,233	86.9%
65 and over	953	37.1%
Median age	59.7 years

Race & ethnicity

White 81.5%

Hispanic or Latino 5.8%

Black or African American 5.7%

Other race 5.2%

Two or more races 1.7%

Group	Count	%
White	2,224	81.5%
Hispanic or Latino	158	5.8%
Black or African American	156	5.7%
Other race	143	5.2%
Two or more races	47	1.7%

Household income

Under $10k 3.6%

$10k–$15k 3.9%

$15k–$25k 8.6%

$25k–$35k 8.4%

$35k–$50k 11.3%

$50k–$75k 13.8%

$75k–$100k 22.4%

$100k–$150k 15.9%

$150k–$200k 2.1%

$200k+ 10.0%

Range	% of households
Under $10k	3.6%
$10k–$15k	3.9%
$15k–$25k	8.6%
$25k–$35k	8.4%
$35k–$50k	11.3%
$50k–$75k	13.8%
$75k–$100k	22.4%
$100k–$150k	15.9%
$150k–$200k	2.1%
$200k+	10.0%
Median income	$77,875

Housing

Home values

Under $50k 0.8%

$50k–$100k 0.8%

$100k–$150k 8.7%

$150k–$200k 30.8%

$200k–$300k 21.2%

$300k–$500k 20.5%

$500k–$1M 15.5%

$1M+ 1.7%

Housing overview

Metric	Value
Median home value	$238,400
Median rent / month	$1,099
Owner occupied	72.7%
Renter occupied	27.3%
Vacant	32.0%
Single-family detached	79.8%
Large apartment buildings	3.4%
Mobile homes	1.3%
Median rooms	6.1
Avg household size (owned)	2.02

Year built

Era	%
2020 or later	0.2%
2010–2019	7.9%
2000–2009	13.2%
1990–1999	11.9%
1980–1989	8.8%
1970–1979	11.0%
1960–1969	5.2%
1950–1959	20.8%
1940–1949	3.0%
1939 or earlier	18.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	7.2%
2 bedrooms	33.2%
3 bedrooms	46.1%
4 bedrooms	12.0%
5+ bedrooms	1.1%

Vehicles per household

Vehicles	% of households
No vehicle	8.9%
1 vehicle	35.5%
2 vehicles	39.6%
3 or more	16.1%

Heating fuel

Fuel type	%
Utility gas	1.3%
Electricity	61.1%
Propane / LP gas	16.3%
Fuel oil	13.5%
Wood	7.8%

Households & families

Household type	Count	%
Married-couple family	448	36.8%
Cohabiting couple	148	12.2%
Male householder, no spouse	259	21.3%
Female householder, no spouse	363	29.8%
Households with children under 18	178	14.6%
Households with seniors (65+)	623	51.1%
Average household size	2.07

Marital status

Status	Male	Female
Never married	28.6%	28.6%
Married	47.3%	35.5%
Separated	0.0%	2.9%
Widowed	7.6%	13.2%
Divorced	16.5%	19.8%

Education

Less than 9th grade 1.5%

Some HS, no diploma 7.4%

HS graduate 32.2%

Some college, no degree 17.5%

Associate's degree 7.6%

Bachelor's degree 19.0%

Graduate / professional 14.8%

Metric	%
HS diploma or higher	91.1%
Bachelor's or higher	33.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	3	0.9%
Kindergarten	13	3.8%
Elementary school	155	45.5%
High school	117	34.3%
College / grad school	53	15.5%

Employment

Industry of employment

Manufacturing 15.4%

Education & healthcare 14.5%

Retail trade 14.1%

Professional & management 11.7%

Arts, food & hospitality 9.9%

Agriculture & mining 9.7%

Public administration 8.7%

Construction 5.7%

Finance & real estate 4.6%

Transportation & utilities 3.0%

Other services 1.4%

Wholesale trade 1.3%

Occupation

Category	%
Management, business & arts	38.1%
Service	14.0%
Sales & office	23.1%
Natural resources & construction	12.0%
Production & transportation	12.8%

Employment type

Type	%
Private sector	74.4%
Government	16.0%
Self-employed	8.7%
Unpaid family workers	0.9%

Commute

Method	%
Drive alone	76.3%
Carpool	7.3%
Public transit	0.0%
Walk	8.5%
Other means	2.0%
Avg commute (minutes)	22.4

Poverty

All people 11.5%

Under 18 years 19.8%

18 and over 10.2%

Married-couple families 4.0%

Female-led households 16.9%

Income support

Source	% of households
Social Security	49.3%
Retirement income	42.5%
Supplemental Security	4.9%
Cash public assistance	1.1%
Food stamps / SNAP	14.1%

Health indicators

Condition	%
High blood pressure	45.4%
High cholesterol	41.0%
Heart disease	10.1%
Stroke	4.9%
Asthma	10.8%
Arthritis	34.9%
Kidney disease	4.3%
Pulmonary disease	10.6%
Cancer	9.5%

Behavior / access	%
Binge drinking	12.5%
No physical activity	27.5%
Less than 7 hrs sleep	34.2%
Fair or poor health	18.3%
Poor mental health	13.9%
Poor physical health	12.8%
No health insurance	11.2%
Visited doctor (checkup)	79.0%
Visited dentist	59.8%
Cholesterol screening	93.1%
Teeth loss	15.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	231	10.4%

Disability	%
Any disability	17.1%
Under 18	11.2%
18–64 years	10.7%
65 and over	28.3%

Health insurance coverage

Type	%
Private insurance	68.2%
Public insurance	61.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,498	97.2%
Spanish	48	1.9%
Other Indo-European	43	1.7%
Asian & Pacific Islander	5	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,492	96.9%
Born in same state	2,475	96.3%
Born in different state	1,485	57.8%
Foreign born	17	0.7%
Naturalized citizen	79	3.1%
Not a US citizen	73	92.4%

Ancestry

Ancestry	Count	%
French	493	19.2%
Italian	381	14.8%
Arab	248	9.6%

Ancestry	Count	%
German	37	1.4%
Polish	20	0.8%
English	16	0.6%

Technology access

Metric	% of households
Computer access	47.4%
Internet access	90.9%

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

Frequently asked questions

What ZIP codes does Rock Hall, MD have?

Rock Hall, MD has one ZIP code: 21661. Each ZIP code serves a distinct delivery area within the city and surrounding region.