Location Represented
- Clear Fork (stream)1
- Cleveland (inhabited place)2
- Clifton (inhabited place)1
- Coffeyville (inhabited place)1
- Colombia (nation)1
- Colorado (state)42
- Columbia (inhabited place)1
- Columbus (inhabited place)1
- Connecticut (state)88
- Cuba (nation)2
- Czechoslovakia (general region)1
- Côte d'Ivoire (nation)1
- Dallas (inhabited place)1
- Delaware (state)2
- Denali (mountain)2
- Denver (inhabited place)2
- Des Plaines (inhabited place)1
- Dingess (inhabited place)1
- District of Columbia7
- District of Columbia (national district)1,188
