If available, see below for a list of known police frequencies for Washington, Maine. Or, navigate to another city or town within Knox County, to view the local police frequencies.
| Appleton | Camden | Cushing | Friendship | |
| Hope | Isle Au Haut | North Haven | Owls Head | |
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| Rockland | Rockport | SouthThomaston | St George | |
| Thomaston | Union | Vinalhaven | Warren | |
| Washington | ||||
Detect police activity and stay ticket-free in Washington, Maine with these police radar detectors.