Marriottsville, MD zip code
Marriottsville, Maryland uses one zip code: 21104. Most of it is in Howard County. Together these zip codes are home to about 6.1K people.
Zip codes
1
Population
6.1K
All zips combined
Largest zip
21104
6,052 residents
Zip codes in Marriottsville
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 21104 | 6,052 | $191,804 |