ZIP Code 21057
Glen Arm, Maryland
ZIP Code Information
ZIP code 21057 is a five-digit postal code used by the United States Postal Service for addresses in Glen Arm, Maryland. The ZIP lies within Baltimore County. Clocks here follow the America/New_York time zone (UTC-4).
About 3,946 people live in this ZIP code, and the median household income is roughly $122,019 a year. Figures come from the U.S. Census Bureau American Community Survey and are refreshed as new five-year estimates are released.
What you can do with ZIP code 21057
- Write a mailing address: Glen Arm, MD 21057. The ZIP goes last, after the state abbreviation.
- Check whether a shipping or delivery quote applies to this area — most US carriers price by ZIP code rather than by city.
- Look up the local time zone before scheduling a call — the ZIP tells you which zone applies to that address.
- Compare the ZIP with neighbouring codes to see how population and income shift block by block.
Location Map
Full mapNearby ZIP Codes
Radius search| ZIP Code | City | Distance | |
|---|---|---|---|
| 21092 | Long Green | 1.8 km | Distance |
| 21082 | Hydes | 4.3 km | Distance |
| 21051 | Fork | 6 km | Distance |
| 21131 | Phoenix | 6.1 km | Distance |
| 21251 | Baltimore | 6.9 km | Distance |
| 21094 | Lutherville Timonium | 6.9 km | Distance |
| 21286 | Towson | 7.1 km | Distance |
| 21013 | Baldwin | 7.2 km | Distance |
| 21236 | Nottingham | 7.7 km | Distance |
| 21234 | Parkville | 8.1 km | Distance |
Nearby Cities
Long Green, Maryland
(1.8 km)
Hydes, Maryland
(4.3 km)
Fork, Maryland
(6 km)
Phoenix, Maryland
(6.1 km)
Baltimore, Maryland
(6.9 km)
Lutherville Timonium, Maryland
(6.9 km)
Towson, Maryland
(7.1 km)
Baldwin, Maryland
(7.2 km)
Frequently Asked Questions
ZIP code 21057 is located in Glen Arm, Maryland.
ZIP code 21057 is in Baltimore county, Maryland.
ZIP code 21057 is in the America/New_York timezone.