| Box Elder to Carson (California) | 1,077.72 mi (1,734.42 km) |
| Box Elder to Carson City (Nevada) | 924.32 mi (1,487.54 km) |
| Box Elder to Carteret (New Jersey) | 1,485.53 mi (2,390.73 km) |
| Box Elder to Cartersville (Georgia) | 1,192.35 mi (1,918.90 km) |
| Box Elder to Carthage (Missouri) | 664.32 mi (1,069.12 km) |
| Box Elder to Cary (Illinois) | 757.86 mi (1,219.66 km) |
| Box Elder to Cary (North Carolina) | 1,401.29 mi (2,255.16 km) |
| Box Elder to Casa de Oro-Mount Helix (California) | 1,083.14 mi (1,743.14 km) |
| Box Elder to Casa Grande (Arizona) | 904.13 mi (1,455.05 km) |
| Box Elder to Casas Adobes (Arizona) | 919.00 mi (1,478.99 km) |
| Box Elder to Cascades (Virginia) | 1,367.15 mi (2,200.22 km) |
| Box Elder to Casper (Wyoming) | 184.57 mi (297.03 km) |
| Box Elder to Casselberry (Florida) | 1,604.59 mi (2,582.33 km) |
| Box Elder to Castaic (California) | 1,061.80 mi (1,708.80 km) |
| Box Elder to Castle Pines (Colorado) | 334.18 mi (537.81 km) |
