| Greenock to Cicero (Illinois) | 3,653.04 mi (5,879.01 km) |
| Greenock to Cimarron Hills (Colorado) | 4,394.38 mi (7,072.07 km) |
| Greenock to Cincinnati (Ohio) | 3,669.20 mi (5,905.00 km) |
| Greenock to Cinco Ranch (Texas) | 4,578.24 mi (7,367.97 km) |
| Greenock to Circleville (Ohio) | 3,587.85 mi (5,774.09 km) |
| Greenock to Citrus (California) | 5,083.96 mi (8,181.84 km) |
| Greenock to Citrus Heights (California) | 4,917.05 mi (7,913.23 km) |
| Greenock to Citrus Park (Florida) | 4,171.45 mi (6,713.30 km) |
| Greenock to Claiborne (Louisiana) | 4,295.84 mi (6,913.48 km) |
| Greenock to Claremont (California) | 5,078.04 mi (8,172.31 km) |
| Greenock to Claremont (New Hampshire) | 3,011.55 mi (4,846.62 km) |
| Greenock to Claremore (Oklahoma) | 4,218.21 mi (6,788.55 km) |
| Greenock to Clarksburg (Maryland) | 3,394.43 mi (5,462.81 km) |
| Greenock to Clarksburg (West Virginia) | 3,506.44 mi (5,643.07 km) |
| Greenock to Clarksdale (Mississippi) | 4,147.80 mi (6,675.24 km) |
