Castlewood, SD
ZIP Codes in Castlewood, South Dakota
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 57223 | 1,317 | 44.7123, -96.9944 |
Castlewood has 1 ZIP code
ZIP Codes in Castlewood, South Dakota
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 57223 | 1,317 | 44.7123, -96.9944 |