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ZIP 21057 · Glen Arm

Who lives in ZIP code 21057 (Glen Arm, MD): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Glen Arm, MD · Baltimore County

uszips 2026
People4,386
Median age41.3
Household income$145,924
Home value$618,155
Median rent$1,746/mo
Poverty3.1%
College degree+54.0%
Commute33 min

Place

Metro area
Baltimore-Columbia-Towson, MD
Wider region
Washington-Baltimore-Arlington, DC-MD-VA-WV-PA
Time zone
Eastern
Density
107 / sq mi
Housing units
1,545

County

Baltimore100%

Share of the ZIP's people in each county.

Age mix

Under 1013.6%
10–1913.2%
20s7.8%
30s13.7%
40s11.4%
50s11.8%
60s12.0%
70s6.5%
80+9.9%

21.8% are 65 or older; 75.0% are adults.

Household income

Under $25K7.3%
$25K–50K8.6%
$50K–75K6.7%
$75K–100K6.7%
$100K–150K21.6%
$150K+49.1%

70.7% of households earn $100K+. Median per person: $63,162.

Education (adults 25+)

Less than high school5.8%
High school13.9%
Some college26.3%
Bachelor's29.7%
Graduate24.3%

48.9% of degrees are in STEM fields.

Race

White88.1%
Black4.6%
Asian1.5%
Native American0.3%
Pacific Islander0.0%
Other1.1%
Two or more4.4%

7.1% Hispanic or Latino (of any race).

Households & family

Married
60.9%
Never married
22.8%
Divorced
7.7%
Widowed
8.6%
Family size
3.31
Dual-income families
68.5%

Housing

Own their home
85.1%
Rent burden
41.3%
Men / women
50% / 51%

Work

In labor force
63.3%
Unemployment
1.7%
Self-employed
17.5%
Farmers
1.4%

Community

Charitable givers
52.8%
Veterans
3.3%
With a disability
11.0%
No health insurance
3.9%
Limited English
0.0%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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