If available, see below for a list of known police frequencies for Middletown, Maryland. Or, navigate to another city or town within Frederick County, to view the local police frequencies.
| Brunswick | Burkittsville | Emmitsburg | Frederick | |
| Middletown | Myersville | New Market | Rosemont | |
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| Thurmont | Walkersville | Woodsboro | ||
Detect police activity and stay ticket-free in Middletown, Maryland with these police radar detectors.