If available, see below for a list of known police frequencies for Dewey County in South Dakota. Or, navigate to your city or town to view your local city and/or police frequencies within Dewey County, South Dakota.
| Eagle Butte | Green Grass | Isabel | La Plant | |
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| North Eagle Butte | Timber Lake | Whitehorse | ||
Detect police activity and stay ticket-free in Dewey County with these police radar detectors.