| Mercer Island to Clemson (South Carolina) | 2,206.77 mi (3,551.45 km) |
| Mercer Island to Clermont (Florida) | 2,526.12 mi (4,065.40 km) |
| Mercer Island to Cleveland (Mississippi) | 1,888.59 mi (3,039.39 km) |
| Mercer Island to Cleveland (Ohio) | 2,017.39 mi (3,246.67 km) |
| Mercer Island to Cleveland (Tennessee) | 2,092.08 mi (3,366.88 km) |
| Mercer Island to Cleveland Heights (Ohio) | 2,021.78 mi (3,253.73 km) |
| Mercer Island to Cliffside Park (New Jersey) | 2,394.93 mi (3,854.27 km) |
| Mercer Island to Clifton (Colorado) | 904.97 mi (1,456.41 km) |
| Mercer Island to Clifton (New Jersey) | 2,385.78 mi (3,839.53 km) |
| Mercer Island to Clinton (Iowa) | 1,607.55 mi (2,587.09 km) |
| Mercer Island to Clinton (Maryland) | 2,328.56 mi (3,747.46 km) |
| Mercer Island to Clinton (Mississippi) | 1,968.31 mi (3,167.68 km) |
| Mercer Island to Clinton (Utah) | 669.40 mi (1,077.30 km) |
| Mercer Island to Clive (Iowa) | 1,449.02 mi (2,331.97 km) |
| Mercer Island to Cloquet (Minnesota) | 1,390.24 mi (2,237.38 km) |
