| Highlands Ranch to Cullman (Alabama) | 1,066.26 mi (1,715.98 km) |
| Highlands Ranch to Culpeper (Virginia) | 1,444.55 mi (2,324.79 km) |
| Highlands Ranch to Culver City (California) | 834.49 mi (1,342.98 km) |
| Highlands Ranch to Cumberland (Maryland) | 1,390.56 mi (2,237.90 km) |
| Highlands Ranch to Cupertino (California) | 935.47 mi (1,505.49 km) |
| Highlands Ranch to Cutler Bay (Florida) | 1,719.62 mi (2,767.47 km) |
| Highlands Ranch to Cutlerville (Michigan) | 1,026.44 mi (1,651.90 km) |
| Highlands Ranch to Cuyahoga Falls (Ohio) | 1,236.06 mi (1,989.24 km) |
| Highlands Ranch to Cypress (California) | 823.91 mi (1,325.95 km) |
| Highlands Ranch to Cypress Gardens (Florida) | 1,549.89 mi (2,494.31 km) |
| Highlands Ranch to Cypress Lake (Florida) | 1,602.50 mi (2,578.97 km) |
| Highlands Ranch to D'Iberville (Mississippi) | 1,101.74 mi (1,773.07 km) |
| Highlands Ranch to Dakota Ridge (Colorado) | 10.22 mi (16.45 km) |
| Highlands Ranch to Dale City (Virginia) | 1,476.82 mi (2,376.71 km) |
| Highlands Ranch to Dallas (Georgia) | 1,177.46 mi (1,894.93 km) |
