| Boise to Corinth (Mississippi) | 1,589.10 mi (2,557.41 km) |
| Boise to Corinth (Texas) | 1,259.75 mi (2,027.38 km) |
| Boise to Cornelius (North Carolina) | 1,949.08 mi (3,136.75 km) |
| Boise to Cornelius (Oregon) | 360.83 mi (580.69 km) |
| Boise to Corning (New York) | 1,967.70 mi (3,166.72 km) |
| Boise to Corona (California) | 676.70 mi (1,089.04 km) |
| Boise to Coronado (California) | 757.25 mi (1,218.67 km) |
| Boise to Corpus Christi (Texas) | 1,517.07 mi (2,441.49 km) |
| Boise to Corsicana (Texas) | 1,334.51 mi (2,147.68 km) |
| Boise to Cortland (New York) | 2,002.04 mi (3,221.97 km) |
| Boise to Corvallis (Oregon) | 355.98 mi (572.90 km) |
| Boise to Coshocton (Ohio) | 1,769.52 mi (2,847.77 km) |
| Boise to Costa Mesa (California) | 692.30 mi (1,114.15 km) |
| Boise to Coto de Caza (California) | 695.09 mi (1,118.63 km) |
| Boise to Cottage Grove (Minnesota) | 1,153.22 mi (1,855.93 km) |
