If available, see below for a list of known police frequencies for Cerro Gordo County in Iowa. Or, navigate to your city or town to view your local city and/or police frequencies within Cerro Gordo County, Iowa.
| Clear Lake | Dougherty | Mason City | Meservey | |
| Plymouth | Rock Falls | Rockwell | Swaledale | |
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| Thornton | Ventura | |||
Detect police activity and stay ticket-free in Cerro Gordo County with these police radar detectors.