If available, see below for a list of known police frequencies for Lake County in South Dakota. Or, navigate to your city or town to view your local city and/or police frequencies within Lake County, South Dakota.
| Brant Lake | Chester | Lake Madison | Madison | |
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| Nunda | Ramona | Wentworth | Winfred | |
Detect police activity and stay ticket-free in Lake County with these police radar detectors.