| Frederick to Cibolo (Texas) | 1,361.68 mi (2,191.41 km) |
| Frederick to Cicero (Illinois) | 566.98 mi (912.46 km) |
| Frederick to Cimarron Hills (Colorado) | 1,457.01 mi (2,344.83 km) |
| Frederick to Cincinnati (Ohio) | 379.69 mi (611.05 km) |
| Frederick to Cinco Ranch (Texas) | 1,236.28 mi (1,989.61 km) |
| Frederick to Circleville (Ohio) | 294.37 mi (473.74 km) |
| Frederick to Citrus (California) | 2,250.83 mi (3,622.37 km) |
| Frederick to Citrus Heights (California) | 2,330.61 mi (3,750.75 km) |
| Frederick to Citrus Park (Florida) | 838.41 mi (1,349.30 km) |
| Frederick to Claiborne (Louisiana) | 952.22 mi (1,532.46 km) |
| Frederick to Claremont (California) | 2,241.33 mi (3,607.07 km) |
| Frederick to Claremont (New Hampshire) | 378.72 mi (609.49 km) |
| Frederick to Claremore (Oklahoma) | 1,013.62 mi (1,631.26 km) |
| Frederick to Clarksburg (Maryland) | 16.48 mi (26.52 km) |
| Frederick to Clarksburg (West Virginia) | 155.74 mi (250.63 km) |
