If available, see below for a list of known police frequencies for Mercer County in Ohio. Or, navigate to your city or town to view your local city and/or police frequencies within Mercer County, Ohio.
| Burkettsville | Celina | Chickasaw | Coldwater | |
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| Fort Recovery | Mendon | Montezuma | Rockford | |
| St Henry | ||||
Detect police activity and stay ticket-free in Mercer County with these police radar detectors.