If available, see below for a list of known police frequencies for New Hartford, Iowa. Or, navigate to another city or town within Butler County, to view the local police frequencies.
| Allison | Aplington | Aredale | Bristow | |
| Clarksville | Dumont | Greene | New Hartford | |
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| Parkersburg | Shell Rock | |||
Detect police activity and stay ticket-free in New Hartford, Iowa with these police radar detectors.