If available, see below for a list of known police frequencies for Barnstable County in Massachusetts. Or, navigate to your city or town to view your local city and/or police frequencies within Barnstable County, Massachusetts.
| Barnstable | Bourne | Brewster | Chatham | |
| Dennis | Eastham | Falmouth | Harwich | |
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| Mashpee | Orleans | Provincetown | Sandwich | |
| Truro | Wellfleet | Yarmouth | ||
Detect police activity and stay ticket-free in Barnstable County with these police radar detectors.