Groton zip code
Zip code in Groton, SD
The location Groton belongs to Brown County, state of South Dakota. Groton has been assigned with the zip code 57445.
Groton is the official name of the location so if you want to use the US Postal Service you must use that name.
| Zip code | Type | Population |
|---|---|---|
| 57445 | STANDARD | 1,850 |
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