| Grinon to Carson (California) | 5,831.96 mi (9,385.64 km) |
| Grinon to Carson City (Nevada) | 5,626.24 mi (9,054.55 km) |
| Grinon to Carteret (New Jersey) | 3,597.16 mi (5,789.08 km) |
| Grinon to Cartersville (Georgia) | 4,317.35 mi (6,948.10 km) |
| Grinon to Carthage (Missouri) | 4,654.24 mi (7,490.28 km) |
| Grinon to Cary (Illinois) | 4,195.61 mi (6,752.18 km) |
| Grinon to Cary (North Carolina) | 3,968.73 mi (6,387.05 km) |
| Grinon to Casa de Oro-Mount Helix (California) | 5,832.57 mi (9,386.62 km) |
| Grinon to Casa Grande (Arizona) | 5,607.89 mi (9,025.02 km) |
| Grinon to Casas Adobes (Arizona) | 5,602.05 mi (9,015.62 km) |
| Grinon to Cascades (Virginia) | 3,794.17 mi (6,106.13 km) |
| Grinon to Casper (Wyoming) | 4,936.67 mi (7,944.81 km) |
| Grinon to Casselberry (Florida) | 4,348.19 mi (6,997.74 km) |
| Grinon to Castaic (California) | 5,815.06 mi (9,358.43 km) |
| Grinon to Castle Pines (Colorado) | 5,021.82 mi (8,081.83 km) |
