If available, see below for a list of known police frequencies for Winthrop, Iowa. Or, navigate to another city or town within Buchanan County, to view the local police frequencies.
| Aurora | Brandon | Fairbank | Hazleton | |
| Independence | Jesup | Lamont | Quasqueton | |
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| Rowley | Stanley | Winthrop | ||
Detect police activity and stay ticket-free in Winthrop, Iowa with these police radar detectors.