PlainZIP

Clarksville, MD · standard

ZIP Code 21029

Howard County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

11,333
274/sq mi
$243,542
Median income
$912,100
Median home value
81.4%
Bachelor's or higher

The verdict

Clarksville pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 1%
household income, US ZIPs
Top 3%
home value, US ZIPs
274
people per sq mi
94%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21029 against every reporting US ZIP.

ZIP code 21029 is a mid-sized community (a standard USPS delivery area) in Clarksville, Howard County, Maryland, home to 11,333 residents across 41.3 square miles, a density of 274 people per square mile, in the New York time zone.

ZIP 21029 skews affluent, with a median household income of $243,542 (113% above the Maryland average), while per-capita income is $89,689. The poverty rate stands at 1.1% and the unemployment rate at 1.9%. The typical home here is valued at $912,100 (104% above the state average); renters pay a median of $3,501 monthly, and 93.6% of units are owner-occupied.

This is a highly-educated ZIP: 81.4% of adults hold a bachelor's degree or higher, the median age is 43.1, and the average commute is 32 minutes. To put 21029 in local context, 10 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Howard County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 21029

Top 5 sectors by establishment count in Clarksville, MD

Which industries have the most business establishments in ZIP 21029.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21029, Clarksville, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

11,333

Population

41.3

Area (sq mi)

274

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21029?

43.1

Median Age

50.5%

Male

49.5%

Female

30.7%

Foreign-Born

White 42.2%
African American 7.0%
Asian 42.4%
American Indian or Alaska Native 0.4%
Native Hawaiian or Pacific Islander 0.6%
Two or More Ethnicities 6.4%
Hispanic or Latino 4.2%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$243,542

Median Household Income

+113% vs state

$89,689

Per Capita Income

1.1%

Poverty Rate

1.9%

Unemployment Rate

32.4 min

Mean Commute Time

How ZIP 21029 ranks nationally

Clarksville, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$243,542 Top 1% higher than 99% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). Below this entry. $200,000–$220,000: 324 US ZIPs (1%). This entry sits in this band. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 87.5%
Bachelor's Degree or Higher 81.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

4,124

Total Housing Units

4,056

Occupied Units

68

Vacant Units

3.35

Avg Household Size

Occupancy Type

Owner 93.6%
Renter 6.4%

$912,100

Median Home Value

+104% vs state

$3,501

Median Rent

1998

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+7.8%

YoY Change (2024)

269

HPI Index (2000 = 100)

+169%

Total Change Since 2000

Home values in ZIP 21029 have increased 7.8% over the past year (2024). Since 2000, this ZIP has seen +169% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.6% 191
2021 +3.8% 198
2022 +20.8% 239
2023 +4.6% 250
2024 +7.8% 269

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 401 business establishments in ZIP 21029, employing approximately 3,928 people with a combined annual payroll of $214,930,000.

401

Businesses

3,928

Employees

$214.9M

Annual Payroll

14

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 109 27.2%
Health care and social assistance 56 14.0%
Retail trade 40 10.0%
Accommodation and food services 37 9.2%
Other services (except public administration) 34 8.5%
Finance and insurance 28 7.0%
Real estate and rental and leasing 23 5.7%
Construction 21 5.2%
Administrative and support and waste management and remediation services 20 5.0%
Transportation and warehousing 8 2.0%
Information 7 1.8%
Wholesale trade 6 1.5%
Arts, entertainment, and recreation 5 1.3%
Manufacturing 3 0.8%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21029 vs 20777 →

ZIP 21029 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21029 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 21029 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 21029 ranks #2 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
20777 Highland, MD 3,314 2.3 mi
21044 Columbia, MD 41,704 3.7 mi
20759 Fulton, MD 3,355 3.7 mi
21036 Dayton, MD 2,114 3.3 mi
20862 Brinklow, MD 343 3.9 mi
20868 Spencerville, MD 790 5.6 mi
20861 Ashton, MD 1,875 4.4 mi
20833 Brookeville, MD 7,735 5.5 mi
21794 West Friendship, MD 2,434 6.4 mi
20866 Burtonsville, MD 13,344 6.7 mi

More ZIP Codes in Howard County

21043 standard
Ellicott City, MD
Pop: 42,246
21044 standard
Columbia, MD
Pop: 41,704
21045 standard
Columbia, MD
Pop: 38,288
21042 standard
Ellicott City, MD
Pop: 38,076
20723 standard
Laurel, MD
Pop: 28,972
21075 standard
Elkridge, MD
Pop: 26,344

Related Areas

Howard County Clarksville, MD Maryland

Frequently Asked Questions

What county is ZIP code 21029 in? ▼
ZIP code 21029 (Clarksville) is located in Howard County, Maryland. Howard County contains multiple ZIP codes, see the full list at /counties/howard-md.
What is the population of ZIP code 21029? ▼
ZIP code 21029 in Clarksville, MD has a population of 11,333 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21029? ▼
The median household income in ZIP 21029 is $243,542, which is 219% above the national average of $76,288.
What is the average home value in ZIP 21029? ▼
The median home value in ZIP 21029 is $912,100, which is 228% above the national average of $278,155.
What is the demographic makeup of ZIP 21029? ▼
The largest racial group in ZIP 21029 is Asian at 42.4%. Hispanic or Latino residents make up 4.2% of the population.
How many businesses are in ZIP code 21029? ▼
ZIP code 21029 has 401 business establishments employing approximately 3,928 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21029? ▼
The top industries by establishment count in ZIP 21029 are: Professional, scientific, and technical services (109), Health care and social assistance (56), Retail trade (40). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 21029? ▼
According to the FHFA House Price Index, home values in ZIP 21029 increased by 7.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 169%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 21029? ▼
In ZIP code 21029, 87.5% of residents aged 25+ have a high school diploma or higher, and 81.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 21029? ▼
The mean commute time for workers in ZIP code 21029 is 32.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 21029? ▼
In ZIP code 21029, approximately 93.6% of occupied housing units are owner-occupied and 6.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21029? ▼
The poverty rate in ZIP code 21029 is 1.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.