| Loudoun Valley Estates to Cadillac (Michigan) | 546.99 mi (880.29 km) |
| Loudoun Valley Estates to Caguas (Puerto Rico) | 1,589.92 mi (2,558.73 km) |
| Loudoun Valley Estates to Cahokia (Illinois) | 682.78 mi (1,098.82 km) |
| Loudoun Valley Estates to Calabasas (California) | 2,289.33 mi (3,684.31 km) |
| Loudoun Valley Estates to Caldwell (Idaho) | 2,038.19 mi (3,280.15 km) |
| Loudoun Valley Estates to Caledonia (Wisconsin) | 602.06 mi (968.92 km) |
| Loudoun Valley Estates to Calera (Alabama) | 655.03 mi (1,054.16 km) |
| Loudoun Valley Estates to Calexico (California) | 2,155.83 mi (3,469.48 km) |
| Loudoun Valley Estates to Calhoun (Georgia) | 514.95 mi (828.73 km) |
| Loudoun Valley Estates to California (Maryland) | 71.98 mi (115.85 km) |
| Loudoun Valley Estates to California City (California) | 2,222.84 mi (3,577.32 km) |
| Loudoun Valley Estates to Callaway (Florida) | 762.90 mi (1,227.77 km) |
| Loudoun Valley Estates to Calumet City (Illinois) | 559.43 mi (900.31 km) |
| Loudoun Valley Estates to Calverton (Maryland) | 30.39 mi (48.91 km) |
| Loudoun Valley Estates to Camano (Washington) | 2,302.85 mi (3,706.07 km) |
