If available, see below for a list of known police frequencies for Johnson County in Texas. Or, navigate to your city or town to view your local city and/or police frequencies within Johnson County, Texas.
| Alvarado | Briaroaks | Burleson | Cleburne | |
| Coyote Flats | Cresson | Cross Timber | Crowley | |
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| Egan | Godley | Grandview | Joshua | |
| Keene | Lillian | Mansfield | Rio Vista | |
| Venus | ||||
Detect police activity and stay ticket-free in Johnson County with these police radar detectors.