If available, see below for a list of known police frequencies for Duplex, Texas. Or, navigate to another city or town within Fannin County, to view the local police frequencies.
| Bailey | Bonham | Bug Tussle | Dodd City | |
| Duplex | Ector | Elwood | Gober | |
| Honey Grove | Ivanhoe | Ladonia | Leonard | |
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| Mulberry | Pecan Gap | Randolph | Ravenna | |
| Savoy | Telephone | Trenton | Warren | |
| Whitewright | Windom | |||
Detect police activity and stay ticket-free in Duplex, Texas with these police radar detectors.