| Fort Washington to Castle Pines (Colorado) | 1,488.97 mi (2,396.26 km) |
| Fort Washington to Castle Rock (Colorado) | 1,488.80 mi (2,395.99 km) |
| Fort Washington to Castro Valley (California) | 2,421.64 mi (3,897.25 km) |
| Fort Washington to Catalina Foothills (Arizona) | 1,944.41 mi (3,129.23 km) |
| Fort Washington to Cataño (Puerto Rico) | 1,546.61 mi (2,489.02 km) |
| Fort Washington to Cathedral City (California) | 2,206.25 mi (3,550.62 km) |
| Fort Washington to Catonsville (Maryland) | 39.32 mi (63.28 km) |
| Fort Washington to Cave Spring (Virginia) | 193.79 mi (311.88 km) |
| Fort Washington to Cayce (South Carolina) | 399.77 mi (643.36 km) |
| Fort Washington to Cayey (Puerto Rico) | 1,566.71 mi (2,521.37 km) |
| Fort Washington to Cedar City (Utah) | 1,947.89 mi (3,134.83 km) |
| Fort Washington to Cedar Falls (Iowa) | 849.76 mi (1,367.55 km) |
| Fort Washington to Cedar Hill (Texas) | 1,194.97 mi (1,923.12 km) |
| Fort Washington to Cedar Lake (Indiana) | 580.56 mi (934.33 km) |
| Fort Washington to Cedar Mill (Oregon) | 2,359.79 mi (3,797.72 km) |
