ZIP Code 21797

ZIP Code Tabulation Area in Howard County, Maryland.

Population: 8,772
Median household income: $185,435
Median home value: $713,400

Covering part of Howard County, Maryland, ZIP Code 21797 has about 8,772 residents. The median household income of $185,435 is above the Howard County median ($146,982).

Between 2019 and 2023, ZIP Code 21797's population declined 1.1% from 8,873 to 8,772, while its median gross rent was little changed from $1,236 to $1,241.

The largest age group is 55 to 64, 18.1% of residents. White (non-Hispanic) residents are the largest group, 80.7% of the population.

Demographics

ACS 2019–2023

Population: 8,772
Median age: 44.0 yrs
Median household income: $185,435
Median home value: $713,400
Median gross rent: $1,241
Housing units: 3,006
Homeownership rate: 89.9%
Bachelor's degree or higher: 48.6%
Unemployment rate: 4.3%

Trends

ACS 5-year · 2019–2023

Population

8,8738,772

Median household income

$136,250$185,435

Median home value

$581,000$713,400

Median gross rent

$1,236$1,241

Year	Population	Median household income	Median home value	Median gross rent
2019	8,873	$136,250	$581,000	$1,236
2020	8,558	$138,077	$572,000	$894
2021	8,755	$146,908	$587,300	$1,185
2022	9,034	$179,271	$674,500	$1,012
2023	8,772	$185,435	$713,400	$1,241

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 56.2%

5 to 1716.6%

18 to 248.7%

25 to 348.4%

35 to 4410.9%

45 to 5416.6%

55 to 6418.1%

65 to 749.4%

75 and over5.1%

	Count	Share
Under 5	541	6.2%
5 to 17	1,460	16.6%
18 to 24	765	8.7%
25 to 34	739	8.4%
35 to 44	955	10.9%
45 to 54	1,459	16.6%
55 to 64	1,588	18.1%
65 to 74	822	9.4%
75 and over	443	5.1%

Race & ethnicity

	Count	Share
White (non-Hispanic)	7,076	80.7%
Black or African American	222	2.5%
American Indian & Alaska Native	9	0.1%
Asian	560	6.4%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	28	0.3%
Two or more races	510	5.8%
Hispanic or Latino (any race)	367	4.2%

Educational attainment (age 25+)

No high school diploma6.6%

High school graduate20.4%

Some college or associate's24.4%

Bachelor's degree25.6%

Graduate or professional degree23.0%

	Count	Share
No high school diploma	398	6.6%
High school graduate	1,223	20.4%
Some college or associate's	1,466	24.4%
Bachelor's degree	1,540	25.6%
Graduate or professional degree	1,379	23.0%

Commute to work

Mean travel time to work: 39 min

Drove alone67.5%

Carpooled6.6%

Public transit0.9%

Walked0.0%

Bicycle0.0%

Worked from home24.9%

Other means0.2%

How workers get to work

	Count	Share
Drove alone	3,002	67.5%
Carpooled	292	6.6%
Public transit	39	0.9%
Walked	0	0.0%
Bicycle	0	0.0%
Worked from home	1,106	24.9%
Other means	7	0.2%

Travel time

	Count	Share
Under 15 min	232	6.9%
15 to 29 min	784	23.5%
30 to 44 min	1,168	35.0%
45 to 59 min	672	20.1%
60+ min	484	14.5%

Households

Average household size: 2.98
Poverty rate: 4.7% (413 of 8,755)

	Count	Share
Family households	2,471	84.2%
Nonfamily households	465	15.8%

Housing

Median year structure built: 1986

Occupancy

	Count	Share
Occupied	2,936	97.7%
Vacant	70	2.3%

Tenure (of occupied units)

	Count	Share
Owner-occupied	2,639	89.9%
Renter-occupied	297	10.1%

1-unit, detached90.3%

1-unit, attached1.0%

2 to 4 units4.0%

5 to 19 units0.0%

20 or more units0.0%

Mobile home & other4.7%

Units in structure

	Count	Share
1-unit, detached	2,715	90.3%
1-unit, attached	30	1.0%
2 to 4 units	121	4.0%
5 to 19 units	0	0.0%
20 or more units	0	0.0%
Mobile home & other	140	4.7%

ZIP Code 21797

Demographics

Trends

Age distribution

Race & ethnicity

Educational attainment (age 25+)

Commute to work

Households

Housing

Geography

Counties this ZIP covers

Compare with nearby ZIP codes

National ZIP rankings

Nearby ZIP codes