57533 Zip code is used for Iona Area Code City in Gregory County, South Dakota in Usa. The ZIP Codes / Postal Codes are Used by USPS (United States Postal Service known as “Post Office”, “ Usa Mail”, or” Postal Service”, an independent agency of the United States federal government responsible for providing postal service in the United States). Below is the detail for 57533, Iona Area Code City.
| Zip Code | : | 57533 |
| City Name | : | Iona Area Code |
| County Name | : | Gregory County |
| State Name | : | South Dakota |
| Country Name | : | USA |
| Area Code | : | 605 |
| Time Zone | : | CST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |