About ZIP code 57223
The ZIP code 57223 routes mail to Castlewood in the South Dakota 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
57223 - Castlewood
ZIP code 57223 is Castlewood in South Dakota, United States.
| ZIP code | 57223 |
| Place | Castlewood |
| Region | South Dakota |
| District | Hamlin |
| Country | United States (US) |
| Coordinates | 44.7313, -97.0204 (map) |