| Hard to Chantilly (Virginia) | 4,195.44 mi (6,751.90 km) |
| Hard to Chaparral (New Mexico) | 5,665.69 mi (9,118.05 km) |
| Hard to Chapel Hill (North Carolina) | 4,394.21 mi (7,071.80 km) |
| Hard to Charleston (Illinois) | 4,600.81 mi (7,404.29 km) |
| Hard to Charleston (South Carolina) | 4,576.83 mi (7,365.70 km) |
| Hard to Charleston (West Virginia) | 4,392.15 mi (7,068.47 km) |
| Hard to Charlotte (North Carolina) | 4,502.53 mi (7,246.13 km) |
| Hard to Charlottesville (Virginia) | 4,276.21 mi (6,881.90 km) |
| Hard to Chaska (Minnesota) | 4,549.02 mi (7,320.94 km) |
| Hard to Chatham (Illinois) | 4,650.41 mi (7,484.12 km) |
| Hard to Chattanooga (Tennessee) | 4,692.83 mi (7,552.38 km) |
| Hard to Cheat Lake (West Virginia) | 4,260.49 mi (6,856.60 km) |
| Hard to Chelsea (Alabama) | 4,833.07 mi (7,778.08 km) |
| Hard to Chelsea (Massachusetts) | 3,781.26 mi (6,085.35 km) |
| Hard to Cheney (Washington) | 5,148.85 mi (8,286.27 km) |
