| San Gwann to Carson (California) | 6,734.28 mi (10,837.78 km) |
| San Gwann to Carson City (Nevada) | 6,486.98 mi (10,439.79 km) |
| San Gwann to Carteret (New Jersey) | 4,608.96 mi (7,417.40 km) |
| San Gwann to Cartersville (Georgia) | 5,335.02 mi (8,585.89 km) |
| San Gwann to Carthage (Missouri) | 5,637.79 mi (9,073.15 km) |
| San Gwann to Cary (Illinois) | 5,169.38 mi (8,319.31 km) |
| San Gwann to Cary (North Carolina) | 4,990.89 mi (8,032.06 km) |
| San Gwann to Casa de Oro-Mount Helix (California) | 6,748.19 mi (10,860.17 km) |
| San Gwann to Casa Grande (Arizona) | 6,548.81 mi (10,539.29 km) |
| San Gwann to Casas Adobes (Arizona) | 6,549.37 mi (10,540.19 km) |
| San Gwann to Cascades (Virginia) | 4,807.14 mi (7,736.35 km) |
| San Gwann to Casper (Wyoming) | 5,842.84 mi (9,403.14 km) |
| San Gwann to Casselberry (Florida) | 5,382.88 mi (8,662.91 km) |
| San Gwann to Castaic (California) | 6,711.44 mi (10,801.02 km) |
| San Gwann to Castle Pines (Colorado) | 5,955.81 mi (9,584.95 km) |
