| Washington to Corinth (Mississippi) | 4,175.84 mi (6,720.37 km) |
| Washington to Corinth (Texas) | 4,586.00 mi (7,380.46 km) |
| Washington to Cornelius (North Carolina) | 3,859.48 mi (6,211.23 km) |
| Washington to Cornelius (Oregon) | 4,705.04 mi (7,572.03 km) |
| Washington to Corning (New York) | 3,388.56 mi (5,453.35 km) |
| Washington to Corona (California) | 5,233.56 mi (8,422.61 km) |
| Washington to Coronado (California) | 5,291.07 mi (8,515.15 km) |
| Washington to Corpus Christi (Texas) | 4,892.53 mi (7,873.77 km) |
| Washington to Corsicana (Texas) | 4,621.46 mi (7,437.52 km) |
| Washington to Cortland (New York) | 3,334.33 mi (5,366.09 km) |
| Washington to Corvallis (Oregon) | 4,766.63 mi (7,671.16 km) |
| Washington to Coshocton (Ohio) | 3,658.68 mi (5,888.07 km) |
| Washington to Costa Mesa (California) | 5,255.62 mi (8,458.10 km) |
| Washington to Coto de Caza (California) | 5,249.75 mi (8,448.65 km) |
| Washington to Cottage Grove (Minnesota) | 3,833.55 mi (6,169.50 km) |
