| Boise to Castle Rock (Colorado) | 656.44 mi (1,056.43 km) |
| Boise to Castro Valley (California) | 508.78 mi (818.80 km) |
| Boise to Catalina Foothills (Arizona) | 832.58 mi (1,339.91 km) |
| Boise to Cataño (Puerto Rico) | 3,370.64 mi (5,424.52 km) |
| Boise to Cathedral City (California) | 674.76 mi (1,085.93 km) |
| Boise to Catonsville (Maryland) | 2,047.79 mi (3,295.60 km) |
| Boise to Cave Spring (Virginia) | 1,939.53 mi (3,121.36 km) |
| Boise to Cayce (South Carolina) | 1,991.91 mi (3,205.66 km) |
| Boise to Cayey (Puerto Rico) | 3,384.78 mi (5,447.27 km) |
| Boise to Cedar City (Utah) | 440.55 mi (708.99 km) |
| Boise to Cedar Falls (Iowa) | 1,198.54 mi (1,928.87 km) |
| Boise to Cedar Hill (Texas) | 1,290.09 mi (2,076.19 km) |
| Boise to Cedar Lake (Indiana) | 1,467.70 mi (2,362.03 km) |
| Boise to Cedar Mill (Oregon) | 349.80 mi (562.95 km) |
| Boise to Cedar Park (Texas) | 1,353.95 mi (2,178.97 km) |
