zip code 57421 is a zipcode of Amherst, South Dakota state, usa. zip code of Amherst and its population information along with its latitude and longitude coordinates.
ZIP Code 57421
- Zip Code
- 57421
- City
- Amherst
- County
- Marshall
- State
- South Dakota
- Latitude
- 45.734100
- Longitude
- -97.906800
- Population
- 88