Castlewood zip code
Zip code in Castlewood, SD
The location Castlewood belongs to Hamlin County, state of South Dakota. Castlewood has been assigned with the zip code 57223.
Castlewood 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 |
|---|---|---|
| 57223 | STANDARD | 1,280 |
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