| Washington to Clarkston (Georgia) | 4,072.94 mi (6,554.76 km) |
| Washington to Clarksville (Indiana) | 3,900.93 mi (6,277.94 km) |
| Washington to Clarksville (Tennessee) | 4,048.45 mi (6,515.36 km) |
| Washington to Clawson (Michigan) | 3,597.22 mi (5,789.17 km) |
| Washington to Clay (Alabama) | 4,169.13 mi (6,709.57 km) |
| Washington to Clayton (California) | 5,121.75 mi (8,242.66 km) |
| Washington to Clayton (Missouri) | 4,052.40 mi (6,521.72 km) |
| Washington to Clayton (North Carolina) | 3,756.34 mi (6,045.25 km) |
| Washington to Clayton (Ohio) | 3,770.44 mi (6,067.94 km) |
| Washington to Clearfield (Utah) | 4,649.16 mi (7,482.09 km) |
| Washington to Clearlake (California) | 5,080.97 mi (8,177.04 km) |
| Washington to Clearwater (Florida) | 4,321.01 mi (6,953.99 km) |
| Washington to Cleburne (Texas) | 4,641.08 mi (7,469.10 km) |
| Washington to Clemmons (North Carolina) | 3,812.29 mi (6,135.29 km) |
| Washington to Clemson (South Carolina) | 3,973.58 mi (6,394.86 km) |
