| ZIP Code | 21738 |
|---|---|
| City | Glenwood |
| State | Maryland (MD) |
| County | Howard County |
| Area Code | 410/443/667 |
| Elevation | 546 ft |
| Latitude | 39.279844 |
|---|---|
| Longitude | -77.026706 |
| Timezone | New York (DST) |
| FIPS | 24027 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 47.0 yrs ↑ 6% since 2019 |
|---|---|
| Avg Household Size | 3.15 |
| Below Poverty | 3.0% ▼ 70% below avg |
| College Grads | 80.0% ▲ 106% above avg |
| Unemployment | 2.4% ▼ 52% below avg |
| No HS Diploma | 32 (1.4%) |
| HS Graduate | 187 (8.2%) |
| Some College | 85 (3.7%) |
| Associates | 151 (6.6%) |
| Bachelors | 123 (5.4%) |
| Graduate Degree | 1,696 (74.6%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $230,429 ▲ 202% above avg ↑ 27% since 2019 |
|---|---|
| Median Home Value | $889,100 ▲ 219% above avg ↑ 26% since 2019 |
| Home/Income Ratio | 3.9x (nat avg ~3.5x) |
| Total Units | 1,166 |
| Avg HH Size | 3.15 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 1,166 |
|---|---|
| Owner Occupied | 98.6% |
| Renter Occupied | 1.4% |
| Avg HH Size | 3.15 |
ZIP code 21738 is located in Glenwood, Maryland, within Howard County. With a population of 3,668, this is a sparsely populated ZIP code with a mature community — the median age is 47 years. Economically, 21738 is a affluent ZIP code: the median household income of $230,429 is more than double the national average.
Real estate in ZIP code 21738 represents among the most expensive housing markets in the country. The median home value of $889,100 is more than double the national average. Homeownership is strong here — 98.6% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 26% since 2019.
The population of 21738 is primarily White (87.30%). Residents are highly educated — 80.0% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 3.0%. Household income has grown by 27% since 2019.
The unemployment rate in 21738 stands at 2.4%, which is well below the national average. About 24% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 64%.
Overall, ZIP code 21738 in Glenwood, MD is characterized as affluent, highly educated, a mature community, and predominantly owner-occupied. With 3,668 residents, a median household income of $230,429, and a median home value of $889,100, it offers a clear picture of life in this part of Maryland.