21758
Knoxville, Frederick - United States
Postal code 21758 corresponds to Knoxville, Frederick, in Maryland (United States).
- Country
- United States (US)
- Department
- Maryland
- Municipality
- Frederick
- Coordinates
- 39.3479, -77.6513Degrees, minutes, seconds: 39°20'52"N 77°39'05"W
- Time zone
- America/New_York (UTC-5)
- Dialing code
- +1
How to write the address
Knoxville, Maryland 21758 United States
Nearby codes