About ZIP code 21723
The ZIP code 21723 routes mail to Cooksville 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
21723 - Cooksville
ZIP code 21723 is Cooksville in Maryland, United States.
| ZIP code | 21723 |
| Place | Cooksville |
| Region | Maryland |
| District | Howard |
| Country | United States (US) |
| Coordinates | 39.3211, -77.0051 (map) |