57233 Zip Code
| City: | Erwin |
| State: | SD |
| County: | Kingsbury County |
| Area Codes: | 605 |
| Latitude: | 44.48 |
| Longitude: | -97.44 |
| Time Zone: | America/Chicago |
| Population in 2010: | 118 |
| School District: | De Smet School District 38-2 |
| District Code: | 17850 |
| City: | Erwin |
| State: | SD |
| County: | Kingsbury County |
| Area Codes: | 605 |
| Latitude: | 44.48 |
| Longitude: | -97.44 |
| Time Zone: | America/Chicago |
| Population in 2010: | 118 |
| School District: | De Smet School District 38-2 |
| District Code: | 17850 |
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