| Grays to Carson (California) | 5,469.33 mi (8,802.03 km) |
| Grays to Carson City (Nevada) | 5,210.46 mi (8,385.42 km) |
| Grays to Carteret (New Jersey) | 3,495.19 mi (5,624.96 km) |
| Grays to Cartersville (Georgia) | 4,222.51 mi (6,795.48 km) |
| Grays to Carthage (Missouri) | 4,449.15 mi (7,160.21 km) |
| Grays to Cary (Illinois) | 3,973.90 mi (6,395.38 km) |
| Grays to Cary (North Carolina) | 3,900.85 mi (6,277.81 km) |
| Grays to Casa de Oro-Mount Helix (California) | 5,489.15 mi (8,833.94 km) |
| Grays to Casa Grande (Arizona) | 5,306.36 mi (8,539.76 km) |
| Grays to Casas Adobes (Arizona) | 5,311.76 mi (8,548.45 km) |
| Grays to Cascades (Virginia) | 3,691.98 mi (5,941.67 km) |
| Grays to Casper (Wyoming) | 4,584.50 mi (7,378.04 km) |
| Grays to Casselberry (Florida) | 4,350.18 mi (7,000.94 km) |
| Grays to Castaic (California) | 5,444.27 mi (8,761.71 km) |
| Grays to Castle Pines (Colorado) | 4,713.10 mi (7,585.00 km) |
