| Gourock to Cookeville (Tennessee) | 3,856.42 mi (6,206.31 km) |
| Gourock to Coolidge (Arizona) | 4,948.04 mi (7,963.10 km) |
| Gourock to Coon Rapids (Minnesota) | 3,680.44 mi (5,923.10 km) |
| Gourock to Cooper City (Florida) | 4,191.00 mi (6,744.76 km) |
| Gourock to Coos Bay (Oregon) | 4,721.26 mi (7,598.14 km) |
| Gourock to Copiague (New York) | 3,175.80 mi (5,110.95 km) |
| Gourock to Coppell (Texas) | 4,445.45 mi (7,154.27 km) |
| Gourock to Copperas Cove (Texas) | 4,579.20 mi (7,369.51 km) |
| Gourock to Coral Gables (Florida) | 4,208.98 mi (6,773.71 km) |
| Gourock to Coral Springs (Florida) | 4,177.84 mi (6,723.59 km) |
| Gourock to Coral Terrace (Florida) | 4,207.96 mi (6,772.06 km) |
| Gourock to Coralville (Iowa) | 3,794.82 mi (6,107.18 km) |
| Gourock to Coram (New York) | 3,151.12 mi (5,071.24 km) |
| Gourock to Corcoran (California) | 5,017.86 mi (8,075.47 km) |
| Gourock to Cordele (Georgia) | 4,009.02 mi (6,451.89 km) |
