| ZIP Code | 21090 |
|---|---|
| City | Linthicum Heights |
| State | Maryland (MD) |
| County | Anne Arundel County |
| Area Code | 410/443/667 |
| Elevation | 138 ft |
| Latitude | 39.209567 |
|---|---|
| Longitude | -76.664741 |
| Timezone | New York (DST) |
| FIPS | 24003 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 38.3 yrs ↓ 9% since 2019 |
|---|---|
| Avg Household Size | 2.59 |
| Below Poverty | 3.0% ▼ 70% below avg |
| College Grads | 53.5% ▲ 38% above avg |
| Unemployment | 2.5% ▼ 48% below avg |
| No HS Diploma | 35 (0.5%) |
| HS Graduate | 1,326 (19.9%) |
| Some College | 697 (10.4%) |
| Associates | 1,050 (15.7%) |
| Bachelors | 667 (10%) |
| Graduate Degree | 2,902 (43.5%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $124,688 ▲ 63% above avg ↑ 28% since 2019 |
|---|---|
| Median Home Value | $374,300 ▲ 34% above avg ↑ 19% since 2019 |
| Home/Income Ratio | 3.0x (nat avg ~3.5x) |
| Median Rent | $1,910/mo ↑ 27% since 2019 |
| Total Units | 4,191 |
| Vacant Units | 339 |
| Avg HH Size | 2.59 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 4,191 |
|---|---|
| Vacant | 339 |
| Owner Occupied | 84.1% |
| Renter Occupied | 15.9% |
| Avg HH Size | 2.59 |
ZIP code 21090 is located in Linthicum Heights, Maryland, within Anne Arundel County. With a population of 10,033, this is a lightly populated ZIP code with a middle-aged community — the median age is 38.3 years. Economically, 21090 is a upper-middle-income ZIP code: the median household income of $124,688 is significantly above the national average.
Real estate in ZIP code 21090 represents a mid-range housing market. The median home value of $374,300 is above the national average. Renters can expect to pay around $1,910 per month in median rent. Homeownership is strong here — 84.1% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 19% since 2019.
The population of 21090 is primarily White (80.06%). Residents are well-educated — 53.5% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 3.0%. Household income has grown by 28% since 2019.
The unemployment rate in 21090 stands at 2.5%, which is below the national average. About 16% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 76%.
Overall, ZIP code 21090 in Linthicum Heights, MD is characterized as upper-middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 10,033 residents, a median household income of $124,688, and a median home value of $374,300, it offers a clear picture of life in this part of Maryland.