ZIP Code 21770
ZIP / ZCTAPopulation: 7,815
ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes. Boundaries may differ slightly from postal delivery areas, and estimates for less-populated ZCTAs carry higher margins of error.
Data: U.S. Census Bureau, ACS 5-Year Estimates, 2023 (released December 2024).
Quick Facts — 21770
- What is the median household income in 21770?
- The median household income in 21770 is $184,464 (U.S. Census Bureau ACS 5-Year Estimates, 2023).
- What is the poverty rate in 21770?
- The poverty rate in 21770 is 1.4% (U.S. Census Bureau ACS 2023).
- What is the median home value in 21770?
- $599,700 (U.S. Census Bureau ACS 2023).
- What percentage of 21770 residents have a college degree?
- 54.5% of adults in 21770 hold a bachelor's degree or higher (U.S. Census Bureau ACS 2023).
Population
7,815
Median Income
$184,464
Median Home Value
$599,700
Poverty Rate
1.4%
Unemployment (ACS 2023)
2.2%
Median Age
41.0 yrs
Since 2019
Median Income:
+$45,714 (+32.9%)
Home Value:
+$180,600 (+43.1%)
Poverty Rate:
-0.6 pp (-30%)
Bachelor's+:
+7.1 pp (+15%)
Unemployment:
-2.9 pp (-56.9%)
Demographics
Total Population
7,815
Median Age
41.0
Female
49.7%
Race & Ethnicity
Hispanic or Latino 3.9%
White (non-Hisp.) 76.0%
Black 5.0%
Asian 12.0%
Two or More 6.0%
Other 0.8%
Asian Subgroups (% of total pop.)
Indian
7.3%
Filipino
2.6%
Korean
0.7%
Chinese
0.4%
Vietnamese
0.1%
Hispanic Subgroups (% of total pop.)
Mexican
0.9%
Puerto Rican
0.3%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Income & Poverty
Median Household Income
$184,464
±$29,559
Per Capita Income
$183,478
Median Family Income
$204,625
Poverty Rate
1.4%
Child Poverty Rate
0.0%
Working-Age Poverty Rate
—
SNAP Recipients
4.2%
Social Security Income
—
Retirement Income
38.6%
Household Income Distribution
< $10k
1.2%
$15–25k
0.3%
$25–35k
1.7%
$35–50k
0.9%
$50–75k
4.9%
$75–100k
6.1%
$100–150k
16.0%
$150–200k
23.5%
$200k+
45.4%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Housing
Total Housing Units
2,448
Owner-Occupied
98.0%
Renter-Occupied
2.0%
Vacancy Rate
2.2%
Median Home Value
$599,700
Median Gross Rent
—
Owner Cost Burden (30%+)
8.8%
Renter Cost Burden (30%+)
0.0%
Home Value Distribution
< $50k
0.2%
$50–100k
2.3%
$200–300k
4.3%
$300–500k
25.7%
$500k–$1M
66.1%
$1M+
1.3%
Vehicle Availability
No vehicle
1.7%
1 vehicle
10.9%
2 vehicles
39.2%
3+
48.2%
Housing Type
Single-fam. det.
97.1%
Single-fam. att.
2.9%
Housing Age
Pre-1940
3.1%
1970–1999
29.6%
2000–2009
5.5%
2010+
26.1%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Education
High School or Higher
98.5%
Bachelor's or Higher
54.5%
Graduate Degree
24.1%
Some College / Associate
20.5%
Less Than High School
0.2%
Enrolled in School
—
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Employment
Labor Force Participation
67.2%
Unemployment Rate
2.2%
Work from Home
25.7%
Self-Employed
5.4%
Government Workers
29.7%
Private For-Profit
64.9%
Industry
Prof. Services
20.3%
Edu/Health
17.3%
Public Admin
15.7%
Construction
7.9%
Arts/Entmt.
7.8%
Retail
5.9%
Manufacturing
5.3%
Finance
5.3%
Information
4.0%
Agriculture
2.6%
Transportation
2.1%
Wholesale
1.4%
Occupation
Management
55.0%
Sales
20.2%
Construction
10.5%
Food Prep
7.4%
Production
6.9%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Commute
Median Travel Time
37.0 min
Drove Alone
64.6%
Carpool
9.6%
Public Transit
0.0%
Work from Home
25.7%
Walked
0.0%
Bicycle
—
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Households & Families
Total Households
2,394
Avg. Household Size
3.00
Avg. Family Size
—
Married-Couple Households
80.0%
Single-Mother Households
—
Single-Father Households
—
Living Alone
—
Households with Children
29.2%
Multigenerational
—
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Age Distribution
Under 5
4.3%
5–9
7.8%
10–14
6.6%
15–19
4.8%
20–24
4.7%
25–34
11.1%
35–44
17.5%
45–54
11.1%
55–64
7.2%
65–74
5.9%
75–84
14.2%
85+
2.5%
Under 18: 21.8%
Working age (18–64): 78.2%
65 and over: 18.9%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Social Characteristics
Immigration
Foreign Born
13.8%
Naturalized Citizen
68.9%
Speaks English Less Than Very Well
3.0%
Foreign-Born Origin
Asia
54.0%
Africa
18.2%
Latin America
15.6%
Europe
12.1%
Veterans & Disability
Veteran
8.0%
With a Disability
10.8%
Cognitive Difficulty
—
Ambulatory Difficulty
—
Health Insurance
Insured
97.9%
Uninsured
2.1%
Employer Insurance
—
Medicaid
—
Medicare
—
Technology & Mobility
Broadband Internet
96.4%
Has a Computer
98.0%
Same House 1 Year Ago
94.3%
Moved from Abroad
0.0%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023