Clarksville ZIP Code List — Howard County, MD

There is one unique ZIP code in Clarksville, Maryland and it is 21029. Area code: 240.

ZIP codes

16.92

sq mi land

0.33

sq mi water

240

area code

Clarksville, MD ZIP code map

About Clarksville, MD

Clarksville, MD, is a charming community located in Howard County, Maryland. Known for its suburban feel and excellent schools, it attracts families and professionals alike. The area is rich in natural beauty, with numerous parks and recreational facilities available for residents and visitors.

Location & geography

Clarksville is conveniently situated near notable cities, including Columbia, which is approximately 7 miles to the south, and Ellicott City, about 10 miles to the north. The terrain encompasses both land and water, with a total area of 16.92 square miles of land and 0.33 square miles of water. This mix of landscapes provides a variety of outdoor activities and scenic views.

Community & economy

The character of Clarksville is defined by its close-knit community and a variety of local events that promote social interaction. The local economy features industries such as education, healthcare, and retail, which thrive within the area. Daily life in Clarksville offers residents access to high-quality amenities, making it an appealing place to live and work.

Transportation

Clarksville is easily accessible via major highways, including Maryland Route 108, which connects to other significant roadways. The nearest airport is the Baltimore/Washington International Thurgood Marshall Airport, approximately 20 miles away. Public transit options are limited, so many residents rely on personal vehicles for commuting.

History

Clarksville was established in the late 19th century and has developed significantly over the years. Key industries historically included agriculture and small businesses, reflecting the area's rural beginnings. Notable events in the area’s history included the growth of suburban developments in the late 20th century, contributing to its transformation into a thriving residential community.

Did you know?

One surprising fact about Clarksville is that it has been recognized nationally for its high quality of life and school system. Additionally, the area is noted for its proximity to the scenic Patuxent River, providing opportunities for outdoor recreational activities.

ZIP codes for Clarksville, MD (1)

ZIP code	City	County	Map
21029	Clarksville	Howard	View map

Demographics & statistics

13,817

Population

42.8

Median age

$238,095

Median household income

$81,396

Per capita income

$882,700

Median home value

$3,100

Median monthly rent

92.5%

Home ownership

1.3%

Poverty rate

2.2%

Unemployment

3,797

Housing units

82.5%

Bachelor's or higher

Age distribution

Male Female

187

Under 5

183

467

5–9

457

768

10–14

751

645

15–19

630

399

20–24

390

469

25–34

458

752

35–44

735

1,349

45–54

1,319

760

55–59

742

373

60–64

365

516

65–74

504

258

75–84

252

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	3,773	27.3%
18 and over	10,044	72.7%
65 and over	1,618	11.7%
Median age	42.8 years

Race & ethnicity

White 41.7%

Asian 40.5%

Black or African American 9.1%

Two or more races 4.3%

Hispanic or Latino 2.7%

Other race 1.1%

Native Hawaiian / Pacific Islander 0.5%

American Indian / Alaska Native 0.1%

Group	Count	%
White	5,916	41.7%
Asian	5,751	40.5%
Black or African American	1,293	9.1%
Two or more races	605	4.3%
Hispanic or Latino	383	2.7%
Other race	157	1.1%
Native Hawaiian / Pacific Islander	76	0.5%
American Indian / Alaska Native	19	0.1%

Household income

Under $10k 1.3%

$15k–$25k 0.2%

$25k–$35k 1.0%

$35k–$50k 2.3%

$50k–$75k 2.2%

$75k–$100k 6.1%

$100k–$150k 10.1%

$150k–$200k 12.3%

$200k+ 64.5%

Range	% of households
Under $10k	1.3%
$15k–$25k	0.2%
$25k–$35k	1.0%
$35k–$50k	2.3%
$50k–$75k	2.2%
$75k–$100k	6.1%
$100k–$150k	10.1%
$150k–$200k	12.3%
$200k+	64.5%
Median income	$238,095

Housing

Home values

Under $50k 0.8%

$50k–$100k 0.1%

$100k–$150k 0.4%

$150k–$200k 0.6%

$200k–$300k 0.6%

$300k–$500k 4.8%

$500k–$1M 62.7%

$1M+ 30.0%

Housing overview

Metric	Value
Median home value	$882,700
Median rent / month	$3,100
Owner occupied	92.5%
Renter occupied	7.5%
Vacant	1.6%
Single-family detached	89.5%
Large apartment buildings	3.1%
Mobile homes	0.0%
Median rooms	10.0
Avg household size (owned)	3.43

Year built

Era	%
2020 or later	0.1%
2010–2019	11.9%
2000–2009	32.9%
1990–1999	30.5%
1980–1989	8.5%
1970–1979	7.5%
1960–1969	3.2%
1950–1959	3.9%
1940–1949	0.0%
1939 or earlier	1.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	0.2%
2 bedrooms	2.8%
3 bedrooms	12.3%
4 bedrooms	46.1%
5+ bedrooms	38.4%

Vehicles per household

Vehicles	% of households
No vehicle	0.8%
1 vehicle	7.0%
2 vehicles	43.9%
3 or more	48.3%

Heating fuel

Fuel type	%
Utility gas	51.5%
Electricity	31.9%
Propane / LP gas	6.8%
Fuel oil	8.7%
Solar	0.2%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	3,438	85.2%
Cohabiting couple	69	1.7%
Male householder, no spouse	101	2.5%
Female householder, no spouse	426	10.6%
Households with children under 18	2,059	51.0%
Households with seniors (65+)	1,029	25.5%
Average household size	3.42

Marital status

Status	Male	Female
Never married	30.3%	21.6%
Married	66.6%	66.3%
Separated	0.4%	1.5%
Widowed	0.5%	4.9%
Divorced	2.2%	5.7%

Education

Less than 9th grade 0.3%

Some HS, no diploma 0.4%

HS graduate 5.5%

Some college, no degree 6.9%

Associate's degree 4.5%

Bachelor's degree 34.8%

Graduate / professional 47.7%

Metric	%
HS diploma or higher	99.4%
Bachelor's or higher	82.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	217	4.8%
Kindergarten	169	3.7%
Elementary school	2,061	45.4%
High school	1,199	26.4%
College / grad school	895	19.7%

Employment

Industry of employment

Education & healthcare 27.6%

Professional & management 24.2%

Public administration 17.3%

Construction 5.5%

Finance & real estate 4.9%

Other services 4.7%

Arts, food & hospitality 4.6%

Retail trade 4.4%

Manufacturing 3.7%

Information 1.0%

Transportation & utilities 0.9%

Wholesale trade 0.7%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	77.9%
Service	5.2%
Sales & office	9.9%
Natural resources & construction	3.6%
Production & transportation	3.3%

Employment type

Type	%
Private sector	69.7%
Government	26.1%
Self-employed	4.1%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	74.7%
Carpool	5.1%
Public transit	2.7%
Walk	0.6%
Other means	0.4%
Avg commute (minutes)	33.5

Poverty

All people 1.3%

Under 18 years 1.5%

18 and over 1.2%

Married-couple families 0.5%

Female-led households 7.8%

Income support

Source	% of households
Social Security	22.6%
Retirement income	19.8%
Supplemental Security	2.5%
Cash public assistance	1.1%
Food stamps / SNAP	0.9%

Health indicators

Condition	%
High blood pressure	27.7%
High cholesterol	33.7%
Heart disease	3.7%
Stroke	1.7%
Asthma	7.6%
Arthritis	17.9%
Kidney disease	1.9%
Pulmonary disease	3.0%
Cancer	5.8%

Behavior / access	%
Binge drinking	12.3%
No physical activity	14.0%
Less than 7 hrs sleep	29.8%
Fair or poor health	6.3%
Poor mental health	9.9%
Poor physical health	5.3%
No health insurance	5.5%
Visited doctor (checkup)	75.8%
Visited dentist	78.6%
Cholesterol screening	95.0%
Teeth loss	4.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	268	2.7%

Disability	%
Any disability	5.3%
Under 18	2.9%
18–64 years	3.9%
65 and over	18.7%

Health insurance coverage

Type	%
Private insurance	94.2%
Public insurance	14.1%
Uninsured under 19	0.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,447	97.3%
Spanish	972	7.2%
Other Indo-European	23	0.2%
Asian & Pacific Islander	201	1.5%
Other languages	708	5.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	10,014	72.5%
Born in same state	9,790	70.9%
Born in different state	5,126	37.1%
Foreign born	224	1.6%
Naturalized citizen	3,803	27.5%
Not a US citizen	3,118	82.0%

Ancestry

Ancestry	Count	%
Italian	1,391	10.1%
French	639	4.6%
Arab	625	4.5%
German	112	0.8%
Irish	71	0.5%

Ancestry	Count	%
Polish	48	0.3%
Norwegian	31	0.2%
English	17	0.1%
Dutch	14	0.1%

Technology access

Metric	% of households
Computer access	29.2%
Internet access	98.7%

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

Frequently asked questions

What is the ZIP code for Clarksville, MD?

Clarksville, MD has one ZIP code: 21029.

What is the main ZIP code for Clarksville, MD?

The primary ZIP code for Clarksville, MD is 21029. The city uses area code 240 for phone service.

What county is Clarksville, MD in?

Clarksville is located in Howard County, Maryland.

How many ZIP codes are in Clarksville, MD?

Clarksville, MD has 1 ZIP code.

What ZIP code should I use when mailing a package to a business located in downtown Clarksville near the town center?

Packages mailed to downtown Clarksville and the surrounding town center area use ZIP code 21029, which covers the entire city of Clarksville, Maryland.

What is the ZIP code for addresses in the Clarksville residential areas near the Savage Mill area?

Residential addresses throughout Clarksville, including areas near Savage Mill, use ZIP code 21029, which is the single ZIP code serving the entire city in Howard County.