If available, see below for a list of known police frequencies for Mercer County in Illinois. Or, navigate to your city or town to view your local city and/or police frequencies within Mercer County, Illinois.
| Frequency | Description | Agency | |
|---|---|---|---|
| 154.1 | Mercer County Sheriff - Dispatch | Mercer County Sheriff | |
| 155.625 | Mercer County Sheriff - Dispatch | Mercer County Sheriff | |
| 151.625 | Mercer County Sheriff - TAC | Mercer County Sheriff | |
| 465.475 | Mercer County Sheriff - TAC | Mercer County Sheriff |
| Aledo | Joy | Keithsburg | Matherville | |
| New Boston | New Windsor | North Henderson | Seaton | |
|
| ||||
| Sherrard | Viola | Windsor | ||
Detect police activity and stay ticket-free in Mercer County with these police radar detectors.