| San Gwann to Cookeville (Tennessee) | 5,289.43 mi (8,512.52 km) |
| San Gwann to Coolidge (Arizona) | 6,538.25 mi (10,522.30 km) |
| San Gwann to Coon Rapids (Minnesota) | 5,252.55 mi (8,453.16 km) |
| San Gwann to Cooper City (Florida) | 5,433.04 mi (8,743.63 km) |
| San Gwann to Coos Bay (Oregon) | 6,374.88 mi (10,259.37 km) |
| San Gwann to Copiague (New York) | 4,567.44 mi (7,350.59 km) |
| San Gwann to Coppell (Texas) | 5,939.43 mi (9,558.60 km) |
| San Gwann to Copperas Cove (Texas) | 6,064.08 mi (9,759.20 km) |
| San Gwann to Coral Gables (Florida) | 5,445.73 mi (8,764.05 km) |
| San Gwann to Coral Springs (Florida) | 5,422.88 mi (8,727.28 km) |
| San Gwann to Coral Terrace (Florida) | 5,445.76 mi (8,764.11 km) |
| San Gwann to Coralville (Iowa) | 5,329.33 mi (8,576.73 km) |
| San Gwann to Coram (New York) | 4,542.79 mi (7,310.92 km) |
| San Gwann to Corcoran (California) | 6,653.10 mi (10,707.14 km) |
| San Gwann to Cordele (Georgia) | 5,373.39 mi (8,647.63 km) |
