| Mercer Island to Cullman (Alabama) | 2,043.73 mi (3,289.07 km) |
| Mercer Island to Culpeper (Virginia) | 2,287.33 mi (3,681.10 km) |
| Mercer Island to Culver City (California) | 957.85 mi (1,541.50 km) |
| Mercer Island to Cumberland (Maryland) | 2,211.58 mi (3,559.19 km) |
| Mercer Island to Cupertino (California) | 708.22 mi (1,139.77 km) |
| Mercer Island to Cutler Bay (Florida) | 2,728.97 mi (4,391.85 km) |
| Mercer Island to Cutlerville (Michigan) | 1,792.24 mi (2,884.34 km) |
| Mercer Island to Cuyahoga Falls (Ohio) | 2,034.35 mi (3,273.98 km) |
| Mercer Island to Cypress (California) | 974.65 mi (1,568.54 km) |
| Mercer Island to Cypress Gardens (Florida) | 2,552.55 mi (4,107.93 km) |
| Mercer Island to Cypress Lake (Florida) | 2,613.18 mi (4,205.51 km) |
| Mercer Island to D'Iberville (Mississippi) | 2,118.78 mi (3,409.85 km) |
| Mercer Island to Dakota Ridge (Colorado) | 1,013.19 mi (1,630.58 km) |
| Mercer Island to Dale City (Virginia) | 2,311.64 mi (3,720.23 km) |
| Mercer Island to Dallas (Georgia) | 2,145.54 mi (3,452.91 km) |
