About ZIP code 21701
The ZIP code 21701 routes mail to Frederick in the Maryland region of United States. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
United States ยท ZIP code
21701 - Frederick
ZIP code 21701 is Frederick in Maryland, United States.
| ZIP code | 21701 |
| Place | Frederick |
| Region | Maryland |
| District | Frederick |
| Country | United States (US) |
| Coordinates | 39.4461, -77.335 (map) |