If available, see below for a list of known police frequencies for Monmouth, Illinois. Or, navigate to another city or town within Warren County, to view the local police frequencies.
| Frequency | Description | Agency | |
|---|---|---|---|
| 155.655 | Monmouth Police - Dispatch | Monmouth Police |
| Alexis | Kirkwood | Little York | Monmouth | |
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| Roseville | ||||
Detect police activity and stay ticket-free in Monmouth, Illinois with these police radar detectors.