If available, see below for a list of known police frequencies for Decatur City, Iowa. Or, navigate to another city or town within Decatur County, to view the local police frequencies.
| Davis City | Decatur City | Garden Grove | Grand River | |
| Lamoni | Le Roy | Leon | Pleasanton | |
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| Van Wert | Weldon | |||
Detect police activity and stay ticket-free in Decatur City, Iowa with these police radar detectors.