If available, see below for a list of known police frequencies for Middlesex County in New Jersey. Or, navigate to your city or town to view your local city and/or police frequencies within Middlesex County, New Jersey.
| Carteret | Dunellen | Helmetta | Highland Park | |
| Jamesburg | Metuchen | Middlesex | Milltown | |
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| New Brunswick | Perth Amboy | Sayreville | South Amboy | |
| South Plainfield | South River | Spotswood | ||
Detect police activity and stay ticket-free in Middlesex County with these police radar detectors.