Clarksville ZIP Codes — Howard County, MD

There is one unique ZIP code in Clarksville, Maryland and it is 21029. Area code: 240.
1
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
45
85+
43
← Male
Female →

Age summary

GroupCount%
Under 183,77327.3%
18 and over10,04472.7%
65 and over1,61811.7%
Median age42.8 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%
GroupCount%
White5,91641.7%
Asian5,75140.5%
Black or African American1,2939.1%
Two or more races6054.3%
Hispanic or Latino3832.7%
Other race1571.1%
Native Hawaiian / Pacific Islander760.5%
American Indian / Alaska Native190.1%

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 $10k1.3%
$15k–$25k0.2%
$25k–$35k1.0%
$35k–$50k2.3%
$50k–$75k2.2%
$75k–$100k6.1%
$100k–$150k10.1%
$150k–$200k12.3%
$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

MetricValue
Median home value$882,700
Median rent / month$3,100
Owner occupied92.5%
Renter occupied7.5%
Vacant1.6%
Single-family detached89.5%
Large apartment buildings3.1%
Mobile homes0.0%
Median rooms10.0
Avg household size (owned)3.43

Year built

Era%
2020 or later0.1%
2010–201911.9%
2000–200932.9%
1990–199930.5%
1980–19898.5%
1970–19797.5%
1960–19693.2%
1950–19593.9%
1940–19490.0%
1939 or earlier1.5%

Bedrooms

Size% of units
No bedroom (studio)0.2%
1 bedroom0.2%
2 bedrooms2.8%
3 bedrooms12.3%
4 bedrooms46.1%
5+ bedrooms38.4%

Vehicles per household

Vehicles% of households
No vehicle0.8%
1 vehicle7.0%
2 vehicles43.9%
3 or more48.3%

Heating fuel

Fuel type%
Utility gas51.5%
Electricity31.9%
Propane / LP gas6.8%
Fuel oil8.7%
Solar0.2%
No fuel used0.3%

Households & families

Household typeCount%
Married-couple family3,43885.2%
Cohabiting couple691.7%
Male householder, no spouse1012.5%
Female householder, no spouse42610.6%
Households with children under 182,05951.0%
Households with seniors (65+)1,02925.5%
Average household size3.42

Marital status

StatusMaleFemale
Never married30.3%21.6%
Married66.6%66.3%
Separated0.4%1.5%
Widowed0.5%4.9%
Divorced2.2%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 higher99.4%
Bachelor's or higher82.5%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool2174.8%
Kindergarten1693.7%
Elementary school2,06145.4%
High school1,19926.4%
College / grad school89519.7%

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 & arts77.9%
Service5.2%
Sales & office9.9%
Natural resources & construction3.6%
Production & transportation3.3%

Employment type

Type%
Private sector69.7%
Government26.1%
Self-employed4.1%
Unpaid family workers0.1%

Commute

Method%
Drive alone74.7%
Carpool5.1%
Public transit2.7%
Walk0.6%
Other means0.4%
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 Security22.6%
Retirement income19.8%
Supplemental Security2.5%
Cash public assistance1.1%
Food stamps / SNAP0.9%

Health indicators

Condition%
High blood pressure27.7%
High cholesterol33.7%
Heart disease3.7%
Stroke1.7%
Asthma7.6%
Arthritis17.9%
Kidney disease1.9%
Pulmonary disease3.0%
Cancer5.8%
Behavior / access%
Binge drinking12.3%
No physical activity14.0%
Less than 7 hrs sleep29.8%
Fair or poor health6.3%
Poor mental health9.9%
Poor physical health5.3%
No health insurance5.5%
Visited doctor (checkup)75.8%
Visited dentist78.6%
Cholesterol screening95.0%
Teeth loss4.2%

Veterans & disability

VeteransCount%
Civilian veterans2682.7%
Disability%
Any disability5.3%
Under 182.9%
18–64 years3.9%
65 and over18.7%

Health insurance coverage

Type%
Private insurance94.2%
Public insurance14.1%
Uninsured under 190.7%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only13,44797.3%
Spanish9727.2%
Other Indo-European230.2%
Asian & Pacific Islander2011.5%
Other languages7085.3%

Place of birth & citizenship

OriginCount%
Native born (US)10,01472.5%
Born in same state9,79070.9%
Born in different state5,12637.1%
Foreign born2241.6%
Naturalized citizen3,80327.5%
Not a US citizen3,11882.0%

Ancestry

AncestryCount%
Italian1,39110.1%
French6394.6%
Arab6254.5%
German1120.8%
Irish710.5%
AncestryCount%
Polish480.3%
Norwegian310.2%
English170.1%
Dutch140.1%

Technology access

Metric% of households
Computer access29.2%
Internet access98.7%

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

Frequently asked questions
What ZIP codes does Clarksville, MD have?
Clarksville, MD has one ZIP code: 21029. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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