Castle Rock zip code
Zip code in Castle Rock, SD
The location Castle Rock belongs to Butte County, state of South Dakota. Castle Rock has been assigned with the zip code 57760.
The location name Castle Rock is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Newell, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 57760 | STANDARD | 1,000 |
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