| Upper Grand Lagoon to Carrollwood (Florida) | 243.29 mi (391.53 km) |
| Upper Grand Lagoon to Carson (California) | 1,913.95 mi (3,080.20 km) |
| Upper Grand Lagoon to Carson City (Nevada) | 2,016.31 mi (3,244.94 km) |
| Upper Grand Lagoon to Carteret (New Jersey) | 967.03 mi (1,556.29 km) |
| Upper Grand Lagoon to Cartersville (Georgia) | 281.47 mi (452.98 km) |
| Upper Grand Lagoon to Carthage (Missouri) | 689.50 mi (1,109.64 km) |
| Upper Grand Lagoon to Cary (Illinois) | 843.72 mi (1,357.83 km) |
| Upper Grand Lagoon to Cary (North Carolina) | 557.66 mi (897.47 km) |
| Upper Grand Lagoon to Casa de Oro-Mount Helix (California) | 1,842.43 mi (2,965.11 km) |
| Upper Grand Lagoon to Casa Grande (Arizona) | 1,540.06 mi (2,478.48 km) |
| Upper Grand Lagoon to Casas Adobes (Arizona) | 1,496.67 mi (2,408.66 km) |
| Upper Grand Lagoon to Cascades (Virginia) | 775.02 mi (1,247.27 km) |
| Upper Grand Lagoon to Casper (Wyoming) | 1,433.15 mi (2,306.44 km) |
| Upper Grand Lagoon to Casselberry (Florida) | 285.58 mi (459.59 km) |
| Upper Grand Lagoon to Castaic (California) | 1,934.72 mi (3,113.63 km) |
