| Upper Grand Lagoon to Crawfordsville (Indiana) | 685.32 mi (1,102.92 km) |
| Upper Grand Lagoon to Crest Hill (Illinois) | 798.91 mi (1,285.72 km) |
| Upper Grand Lagoon to Crestview (Florida) | 63.94 mi (102.90 km) |
| Upper Grand Lagoon to Crestwood (Illinois) | 800.73 mi (1,288.65 km) |
| Upper Grand Lagoon to Crestwood (Missouri) | 636.81 mi (1,024.85 km) |
| Upper Grand Lagoon to Creve Coeur (Missouri) | 644.87 mi (1,037.81 km) |
| Upper Grand Lagoon to Crofton (Maryland) | 798.53 mi (1,285.11 km) |
| Upper Grand Lagoon to Crossville (Tennessee) | 401.72 mi (646.51 km) |
| Upper Grand Lagoon to Crowley (Louisiana) | 396.17 mi (637.57 km) |
| Upper Grand Lagoon to Crowley (Texas) | 704.86 mi (1,134.36 km) |
| Upper Grand Lagoon to Crown Point (Indiana) | 782.12 mi (1,258.70 km) |
| Upper Grand Lagoon to Crystal (Minnesota) | 1,107.49 mi (1,782.33 km) |
| Upper Grand Lagoon to Crystal Lake (Illinois) | 845.90 mi (1,361.34 km) |
| Upper Grand Lagoon to Cudahy (California) | 1,909.57 mi (3,073.16 km) |
| Upper Grand Lagoon to Cudahy (Wisconsin) | 890.60 mi (1,433.28 km) |
