| ZIP Code | 21157 |
|---|---|
| City | Westminster |
| State | Maryland (MD) |
| County | Carroll County |
| Area Code | 410/443/667 |
| Elevation | 829 ft |
| Latitude | 39.548569 |
|---|---|
| Longitude | -76.983558 |
| Timezone | New York (DST) |
| FIPS | 24013 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 41.8 yrs ↑ 2% since 2019 |
|---|---|
| Avg Household Size | 2.60 |
| Below Poverty | 7.1% ▼ 29% below avg |
| College Grads | 46.0% ▲ 19% above avg |
| Unemployment | 3.1% ▼ 36% below avg |
| No HS Diploma | 234 (0.9%) |
| HS Graduate | 7,643 (29.7%) |
| Some College | 3,114 (12.1%) |
| Associates | 2,899 (11.3%) |
| Bachelors | 2,155 (8.4%) |
| Graduate Degree | 9,683 (37.6%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $102,835 ▲ 35% above avg ↑ 22% since 2019 |
|---|---|
| Median Home Value | $394,100 ▲ 41% above avg ↑ 23% since 2019 |
| Home/Income Ratio | 3.8x (nat avg ~3.5x) |
| Median Rent | $1,236/mo ↑ 21% since 2019 |
| Total Units | 15,466 |
| Vacant Units | 820 |
| Avg HH Size | 2.60 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 15,466 |
|---|---|
| Vacant | 820 |
| Owner Occupied | 75.9% |
| Renter Occupied | 24.1% |
| Avg HH Size | 2.60 |
ZIP code 21157 is located in Westminster, Maryland, within Carroll County. With a population of 40,191, this is a highly populated ZIP code with a middle-aged community — the median age is 41.8 years. Economically, 21157 is a upper-middle-income ZIP code: the median household income of $102,835 is above the national average.
Real estate in ZIP code 21157 represents a mid-range housing market. The median home value of $394,100 is above the national average. Renters can expect to pay around $1,236 per month in median rent. Homeownership is strong here — 75.9% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 23% since 2019.
The population of 21157 is primarily White (86.04%). Residents are well-educated — 46.0% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 7.1%. Household income has grown by 22% since 2019.
The unemployment rate in 21157 stands at 3.1%, which is below the national average. About 15% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 75%.
Overall, ZIP code 21157 in Westminster, MD is characterized as upper-middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 40,191 residents, a median household income of $102,835, and a median home value of $394,100, it offers a clear picture of life in this part of Maryland.