If available, see below for a list of known police frequencies for Madison County in Missouri. Or, navigate to your city or town to view your local city and/or police frequencies within Madison County, Missouri.
| Castor Station | Cobalt | Fredericktown | Junction City | |
| Marquand | Millcreek | Oak Grove | Saco | |
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| Saint Michel | Zion | |||
Detect police activity and stay ticket-free in Madison County with these police radar detectors.