Frankfort zipcode
| City | Frankfort |
| ZIP Code | 57440 |
| Type | Standard |
| State Code | SD |
| State | South Dakota |
ZIP code of Frankfort is 57440. This place is located in South Dakota state in US. To send any postal service to Frankfort, you must use 57440 zipcode.
You should avoid following 1 city name of South Dakota to be used with the ZIP code 57440.
- Spink Colony, SD