Iowa cities starting with D
- Dallas Center, IA 5
- Danville, IA 5
- Davenport, IA 92
- Dayton, IA 6
- Decorah, IA 25
- Deep River, IA 6
- Denison, IA 16
- Denver, IA 5
- Des Moines, IA 251
- De Witt, IA 7
- Dows, IA 5
- Dubuque, IA 80
- Dunlap, IA 5
- Dysart, IA 5
Ash Flat, AR