21104 ZIP Code – Marriottsville, Maryland
21104 is a mid-sized ZIP code in Marriottsville, Maryland, part of Howard County with a population of approximately 6,077 residents. The median household income is $195,000 — well above the Maryland average and well above the national average. Median home values of $659,400 are well above the national average, with 97.0% owner-occupied housing (increasing). Housing consists of 97% single-family (decreasing).
The unemployment rate is 2.5%, well below the national average. The poverty rate is 2.5%, well below the national average. Bachelor's degree attainment is 63.3%, well above the national average. The median age is 46.0, near the national median. Neighboring ZIP codes include 21163, 21784, 21794.
ZIP Code 21104 Data
Population
6,077
Median Household Income
$195,000
Median Home Value
$659,400
Median Rent
Not provided
Median Age
46.0
Unemployment Rate
2.5%
Poverty Rate
2.5%
Bachelor's Degree or Higher
63.3%
County
Howard County
State
Maryland
See more demographics for:
ZIP 21104 vs. Maryland vs. U.S.
| Metric | ZIP 21104 | MD Avg. | U.S. Avg. |
|---|---|---|---|
| Population | 6,077 | 13k | 10k |
| Median Household Income | $195k | $107k | $73k |
| Median Home Value | $659k | $404k | $258k |
| Median Rent | — | $1,552 | $1,088 |
| Median Age | 46.0 | 43.5 | 43.2 |
| Unemployment Rate | 2.5% | 5.0% | 5.0% |
| Poverty Rate | 2.5% | 9.4% | 13.3% |
| Bachelor's Degree or Higher | 63.3% | 37.6% | 26.9% |
Demographics Charts
Race & Ethnicity
Gender
Education Level (adults 25+)
Nearby ZIP Codes
- 21163 – Woodstock
- 21784 – Sykesville
- 21794 – West Friendship
- 21133 – Randallstown
- 21042 – Ellicott City
- 21723 – Cooksville
- 21244 – Windsor Mill
- 21738 – Glenwood
- 21043 – Ellicott City
- 21117 – Owings Mills
Nearby ZIP Code Comparison
| ZIP Code | City | Population | Median Income |
|---|---|---|---|
| 21163 | WOODSTOCK | 7,222 | $123,858 |
| 21784 | SYKESVILLE | 37,219 | $138,923 |
| 21794 | WEST FRIENDSHIP | 2,309 | $191,458 |
| 21133 | RANDALLSTOWN | 32,070 | $83,305 |
| 21042 | ELLICOTT CITY | 42,528 | $178,207 |