| Grays to Coldwater (Michigan) | 3,862.18 mi (6,215.57 km) |
| Grays to Colesville (Maryland) | 3,675.06 mi (5,914.44 km) |
| Grays to College (Alaska) | 4,220.21 mi (6,791.78 km) |
| Grays to College Park (Georgia) | 4,234.60 mi (6,814.93 km) |
| Grays to College Park (Maryland) | 3,675.78 mi (5,915.60 km) |
| Grays to College Station (Texas) | 4,861.03 mi (7,823.08 km) |
| Grays to Collegedale (Tennessee) | 4,189.35 mi (6,742.11 km) |
| Grays to Colleyville (Texas) | 4,774.20 mi (7,683.34 km) |
| Grays to Collierville (Tennessee) | 4,375.02 mi (7,040.91 km) |
| Grays to Collinsville (Illinois) | 4,209.07 mi (6,773.84 km) |
| Grays to Colonia (New Jersey) | 3,498.37 mi (5,630.09 km) |
| Grays to Colonial Heights (Virginia) | 3,773.48 mi (6,072.83 km) |
| Grays to Colonial Park (Pennsylvania) | 3,612.47 mi (5,813.71 km) |
| Grays to Colorado Springs (Colorado) | 4,740.65 mi (7,629.34 km) |
| Grays to Colton (California) | 5,427.08 mi (8,734.04 km) |
