| Boise to Culpeper (Virginia) | 2,005.55 mi (3,227.63 km) |
| Boise to Culver City (California) | 673.04 mi (1,083.15 km) |
| Boise to Cumberland (Maryland) | 1,937.79 mi (3,118.57 km) |
| Boise to Cupertino (California) | 530.70 mi (854.08 km) |
| Boise to Cutler Bay (Florida) | 2,364.42 mi (3,805.17 km) |
| Boise to Cutlerville (Michigan) | 1,530.76 mi (2,463.52 km) |
| Boise to Cuyahoga Falls (Ohio) | 1,766.53 mi (2,842.95 km) |
| Boise to Cypress (California) | 682.91 mi (1,099.04 km) |
| Boise to Cypress Gardens (Florida) | 2,193.04 mi (3,529.35 km) |
| Boise to Cypress Lake (Florida) | 2,247.45 mi (3,616.93 km) |
| Boise to D'Iberville (Mississippi) | 1,747.06 mi (2,811.62 km) |
| Boise to Dakota Ridge (Colorado) | 635.12 mi (1,022.12 km) |
| Boise to Dale City (Virginia) | 2,033.56 mi (3,272.70 km) |
| Boise to Dallas (Georgia) | 1,805.42 mi (2,905.54 km) |
| Boise to Dallas (Oregon) | 362.01 mi (582.60 km) |
