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ZIP 21157 · Westminster

Who lives in ZIP code 21157 (Westminster, MD): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Westminster, MD · Carroll County

uszips 2026
People38,984
Median age43.2
Household income$104,966
Home value$424,017
Median rent$1,331/mo
Poverty6.7%
College degree+37.9%
Commute31 min

Place

Metro area
Baltimore-Columbia-Towson, MD
Wider region
Washington-Baltimore-Arlington, DC-MD-VA-WV-PA
Time zone
Eastern
Density
194 / sq mi
Housing units
14,785

County

Carroll100%

Share of the ZIP's people in each county.

Age mix

Under 108.7%
10–1914.4%
20s11.5%
30s11.6%
40s13.8%
50s14.0%
60s12.6%
70s8.7%
80+5.1%

19.5% are 65 or older; 80.8% are adults.

Household income

Under $25K9.4%
$25K–50K14.2%
$50K–75K14.2%
$75K–100K10.3%
$100K–150K18.8%
$150K+33.1%

51.9% of households earn $100K+. Median per person: $46,315.

Education (adults 25+)

Less than high school6.2%
High school29.1%
Some college26.8%
Bachelor's23.3%
Graduate14.6%

47.8% of degrees are in STEM fields.

Race

White85.5%
Black3.9%
Asian1.3%
Native American0.1%
Pacific Islander0.0%
Other3.4%
Two or more5.7%

6.5% Hispanic or Latino (of any race).

Households & family

Married
54.2%
Never married
28.8%
Divorced
9.8%
Widowed
7.2%
Family size
2.98
Dual-income families
65.6%

Housing

Own their home
76.8%
Rent burden
31.2%
Men / women
48% / 52%

Work

In labor force
66.0%
Unemployment
4.1%
Self-employed
12.2%
Farmers
0.7%

Community

Charitable givers
38.8%
Veterans
7.5%
With a disability
15.5%
No health insurance
4.0%
Limited English
0.5%

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

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