If available, see below for a list of known police frequencies for Rock Island, Texas. Or, navigate to another city or town within Colorado County, to view the local police frequencies.
| Alleyton | Altair | Bernardo | Boedecker Junction | |
| Borden | Chesterville | Columbus | Eagle Lake | |
| Frelsburg | Garwood | Glidden | Hillcrest | |
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| Hoefner | Matthews | Mentz | Nada | |
| Oakland | Rock Island | Sheridan | Weimar | |
Detect police activity and stay ticket-free in Rock Island, Texas with these police radar detectors.