Smithwick, SD zip code
Smithwick, South Dakota uses one zip code: 57782. Most of it is in Fall River County. Together these zip codes are home to about 58 people.
Zip codes
1
Population
58
All zips combined
Largest zip
57782
58 residents
Zip codes in Smithwick
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 57782 | 58 | $65,500 |