Iowa cities starting with C
- Calmar, IA 6
- Camanche, IA 5
- Carlisle, IA 9
- Carroll, IA 21
- Carson, IA 5
- Carter Lake, IA 5
- Cedar Falls, IA 45
- Cedar Rapids, IA 129
- Centerville, IA 19
- Central City, IA 6
- Chariton, IA 15
- Charles City, IA 23
- Charter Oak, IA 5
- Cherokee, IA 10
- Clarinda, IA 17
- Clarion, IA 8
- Clarksville, IA 6
- Clear Lake, IA 13
- Clermont, IA 5
- Clinton, IA 31
- Clive, IA 5
- Colfax, IA 6
- Columbus Junction, IA 13
- Coon Rapids, IA 5
- Coralville, IA 16
- Corning, IA 10
- Correctionville, IA 5
- Corydon, IA 7
- Council Bluffs, IA 83
- Cresco, IA 9
- Creston, IA 20