Glen Arm, MD zip code
Glen Arm, Maryland uses one zip code: 21057. Most of it is in Baltimore County. Together these zip codes are home to about 4.4K people.
Zip codes
1
Population
4.4K
All zips combined
Largest zip
21057
4,386 residents
Zip codes in Glen Arm
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 21057 | 4,386 | $145,924 |