If available, see below for a list of known police frequencies for Delmar, Iowa. Or, navigate to another city or town within Clinton County, to view the local police frequencies.
| Andover | Calamus | Camanche | Charlotte | |
| Clinton | De Witt | Delmar | Goose Lake | |
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| Grand Mound | Lost Nation | Low Moor | Toronto | |
| Welton | Wheatland | |||
Detect police activity and stay ticket-free in Delmar, Iowa with these police radar detectors.