If available, see below for a list of known police frequencies for Buchanan County in Missouri. Or, navigate to your city or town to view your local city and/or police frequencies within Buchanan County, Missouri.
| Agency | De Kalb | Easton | Faucett | |
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| Halls | Lewis and Clark Village | Rushville | St Joseph | |
| Wallace | ||||
Detect police activity and stay ticket-free in Buchanan County with these police radar detectors.