| Slough to Carson (California) | 5,438.31 mi (8,752.12 km) |
| Slough to Carson City (Nevada) | 5,181.26 mi (8,338.44 km) |
| Slough to Carteret (New Jersey) | 3,456.97 mi (5,563.46 km) |
| Slough to Cartersville (Georgia) | 4,184.49 mi (6,734.28 km) |
| Slough to Carthage (Missouri) | 4,413.17 mi (7,102.32 km) |
| Slough to Cary (Illinois) | 3,938.04 mi (6,337.67 km) |
| Slough to Cary (North Carolina) | 3,862.36 mi (6,215.87 km) |
| Slough to Casa de Oro-Mount Helix (California) | 5,457.50 mi (8,782.99 km) |
| Slough to Casa Grande (Arizona) | 5,273.29 mi (8,486.54 km) |
| Slough to Casas Adobes (Arizona) | 5,278.37 mi (8,494.71 km) |
| Slough to Cascades (Virginia) | 3,653.85 mi (5,880.30 km) |
| Slough to Casper (Wyoming) | 4,552.62 mi (7,326.73 km) |
| Slough to Casselberry (Florida) | 4,311.13 mi (6,938.10 km) |
| Slough to Castaic (California) | 5,413.53 mi (8,712.23 km) |
| Slough to Castle Pines (Colorado) | 4,679.92 mi (7,531.61 km) |
