Groton zipcode
| City | Groton |
| ZIP Code | 57445 |
| Type | Standard |
| State Code | SD |
| State | South Dakota |
ZIP code of Groton is 57445. This place is located in South Dakota state in US. To send any postal service to Groton, you must use 57445 zipcode.
You should avoid following 2 city names of South Dakota to be used with the ZIP code 57445.
- James, SD
- Putney, SD