If available, see below for a list of known police frequencies for Hopatcong, New Jersey. Or, navigate to another city or town within Sussex County, to view the local police frequencies.
| Andover | Branchville | Franklin | Hamburg | |
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| Hopatcong | Newton | Ogdensburg | Stanhope | |
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Detect police activity and stay ticket-free in Hopatcong, New Jersey with these police radar detectors.