Towns
| State | City/Town | Town Title |
|---|---|---|
| Iowa | Casey | Casey, IA |
| Iowa | Castalia | Castalia, IA |
| Iowa | Castana | Castana, IA |
| Iowa | Cedar | Cedar, IA |
| Iowa | Cedar Falls | Cedar Falls, IA |
| Iowa | Cedar Rapids | Cedar Rapids, IA |
| Iowa | Center Junction | Center Junction, IA |
| Iowa | Center Point | Center Point, IA |
| Iowa | Centerville | Centerville, IA |
| Iowa | Central City | Central City, IA |
| Iowa | Chapin | Chapin, IA |
| Iowa | Chariton | Chariton, IA |
| Iowa | Charles City | Charles City, IA |
| Iowa | Charlotte | Charlotte, IA |
| Iowa | Charter Oak | Charter Oak, IA |
| Iowa | Chatsworth | Chatsworth, IA |
| Iowa | Chelsea | Chelsea, IA |
| Iowa | Cherokee | Cherokee, IA |
| Iowa | Chester | Chester, IA |
| Iowa | Chillicothe | Chillicothe, IA |
| Iowa | Church | Church, IA |
| Iowa | Churdan | Churdan, IA |
| Iowa | Cincinnati | Cincinnati, IA |
| Iowa | Clare | Clare, IA |
| Iowa | Clarence | Clarence, IA |