| Boise to Cookeville (Tennessee) | 1,697.21 mi (2,731.40 km) |
| Boise to Coolidge (Arizona) | 779.43 mi (1,254.37 km) |
| Boise to Coon Rapids (Minnesota) | 1,133.13 mi (1,823.60 km) |
| Boise to Cooper City (Florida) | 2,345.58 mi (3,774.85 km) |
| Boise to Coos Bay (Oregon) | 401.26 mi (645.77 km) |
| Boise to Copiague (New York) | 2,179.84 mi (3,508.12 km) |
| Boise to Coppell (Texas) | 1,271.26 mi (2,045.90 km) |
| Boise to Copperas Cove (Texas) | 1,319.60 mi (2,123.69 km) |
| Boise to Coral Gables (Florida) | 2,361.69 mi (3,800.77 km) |
| Boise to Coral Springs (Florida) | 2,336.86 mi (3,760.81 km) |
| Boise to Coral Terrace (Florida) | 2,358.18 mi (3,795.13 km) |
| Boise to Coralville (Iowa) | 1,254.10 mi (2,018.29 km) |
| Boise to Coram (New York) | 2,193.98 mi (3,530.87 km) |
| Boise to Corcoran (California) | 548.44 mi (882.62 km) |
| Boise to Cordele (Georgia) | 1,930.64 mi (3,107.06 km) |
