If available, see below for a list of known police frequencies for Crookston, Minnesota. Or, navigate to another city or town within Polk County, to view the local police frequencies.
| Beltrami | Climax | Crookston | East Grand Forks | |
| Erskine | Fertile | Fisher | Fosston | |
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| Gully | Lengby | McIntosh | Mentor | |
| Nielsville | Trail | Winger | ||
Detect police activity and stay ticket-free in Crookston, Minnesota with these police radar detectors.