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ZIP Code 21157
Westminster, MD, Carroll County
Population
38,984
Land area
77.7sq mi
People per sq mi
502
City
Westminster
ZIP 21157 and nearby ZIP codes
ZIP 21157 at a glance
- The median household income is $104,966, close to the Maryland median.
- A typical owner-occupied home is valued at $424,100 and median rent is $1,331 a month.
Local data for ZIP 21157
Counts from official public data
- Hospitals1
- Emergency Rooms1
- Nursing Homes3
- Schools20
- Colleges2
- Libraries3
- Banks11
- Post Offices1
- Parks13
- Grocery Stores17
- Restaurants126
- Affordable Housing4
- Home Health Agencies3
- Hospice Care1
- Dialysis Centers1
- Mental Health & Addiction Treatment18
- Private Schools4
- Community Colleges & Trade Schools1
- Toxic Release Facilities2
Housing and community stats
ZIP 21157, American Community Survey 2020-2024
Median household income
$104,966
Poverty rate
6.7%
Median home value
$424,100
Prices +0.7% in a year
Median rent
$1,331/mo
Homeownership
76.8%
Bachelor's or higher
37.9%
Median age
43.2
Average commute
31.0 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
1,303
ZIP Business Patterns 2023
Employees
20,132
$1.1B annual payroll
PPP loans
$95.9M
1,131 loans
Campaign donations
$140K
16% D, 37% R, 2026 cycle
Environment and hazard risk
ZIP 21157, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: strong wind
Storm events since 1996
1,083
Countywide, mostly thunderstorm wind
Flood insurance policies
177
0.3% of homes, county
July high / Jan low
85° / 24°F
47.9 inches of rain a year
Health statistics
Share of adults in ZIP 21157, CDC PLACES estimates
Obesity
38.1%
U.S. 33.3% +4.8 pts
Diabetes
10.8%
U.S. 12.1% -1.3 pts
Smoking
11.6%
U.S. 12.8% -1.2 pts
Uninsured (18-64)
7.0%
U.S. 11.1% -4.1 pts
Frequently asked questions
- What city is ZIP code 21157?
- ZIP code 21157 is in Westminster, MD (Carroll County).
- What county is ZIP code 21157 in?
- ZIP code 21157 is mostly in Carroll County, Maryland.
- How many people live in ZIP code 21157?
- About 38,984 people live in the 21157 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.