ZIP Code 21057
Glen Arm · Baltimore, Maryland
21057 is the ZIP code of Glen Arm in Baltimore, Maryland, United States.
- ZIP Code
- 21057
- County
- Baltimore
- State
- Maryland
- Country
- United States
Place with ZIP code 21057
| Place | County | Location |
|---|---|---|
| Glen Arm | Baltimore | 39.458, -76.515 |
Near Baltimore
The nearest major city is Baltimore, about 20 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 21057?
Glen Arm.
Which county and state is 21057 in?
Baltimore, Maryland, United States.
What is the nearest major city to 21057?
Baltimore, about 20 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.