| Ada to Cicero (Illinois) | 4,934.37 mi (7,941.10 km) |
| Ada to Cimarron Hills (Colorado) | 5,663.46 mi (9,114.46 km) |
| Ada to Cincinnati (Ohio) | 4,946.11 mi (7,959.99 km) |
| Ada to Cinco Ranch (Texas) | 5,856.57 mi (9,425.24 km) |
| Ada to Circleville (Ohio) | 4,863.54 mi (7,827.12 km) |
| Ada to Citrus (California) | 6,325.26 mi (10,179.52 km) |
| Ada to Citrus Heights (California) | 6,128.06 mi (9,862.15 km) |
| Ada to Citrus Park (Florida) | 5,412.46 mi (8,710.52 km) |
| Ada to Claiborne (Louisiana) | 5,573.13 mi (8,969.08 km) |
| Ada to Claremont (California) | 6,320.01 mi (10,171.07 km) |
| Ada to Claremont (New Hampshire) | 4,278.94 mi (6,886.30 km) |
| Ada to Claremore (Oklahoma) | 5,499.59 mi (8,850.74 km) |
| Ada to Clarksburg (Maryland) | 4,659.03 mi (7,497.99 km) |
| Ada to Clarksburg (West Virginia) | 4,777.42 mi (7,688.52 km) |
| Ada to Clarksdale (Mississippi) | 5,425.17 mi (8,730.96 km) |
