| Mercer Island to Clarksdale (Mississippi) | 1,875.90 mi (3,018.97 km) |
| Mercer Island to Clarkston (Georgia) | 2,177.29 mi (3,504.01 km) |
| Mercer Island to Clarksville (Indiana) | 1,930.99 mi (3,107.63 km) |
| Mercer Island to Clarksville (Tennessee) | 1,923.80 mi (3,096.06 km) |
| Mercer Island to Clawson (Michigan) | 1,918.04 mi (3,086.78 km) |
| Mercer Island to Clay (Alabama) | 2,074.71 mi (3,338.92 km) |
| Mercer Island to Clayton (California) | 665.25 mi (1,070.61 km) |
| Mercer Island to Clayton (Missouri) | 1,708.56 mi (2,749.66 km) |
| Mercer Island to Clayton (North Carolina) | 2,370.15 mi (3,814.39 km) |
| Mercer Island to Clayton (Ohio) | 1,944.71 mi (3,129.71 km) |
| Mercer Island to Clearfield (Utah) | 672.72 mi (1,082.64 km) |
| Mercer Island to Clearlake (California) | 595.04 mi (957.62 km) |
| Mercer Island to Clearwater (Florida) | 2,505.93 mi (4,032.91 km) |
| Mercer Island to Cleburne (Texas) | 1,669.94 mi (2,687.51 km) |
| Mercer Island to Clemmons (North Carolina) | 2,265.78 mi (3,646.43 km) |
