| River Ridge to Cullman (Alabama) | 352.21 mi (566.83 km) |
| River Ridge to Culpeper (Virginia) | 911.36 mi (1,466.69 km) |
| River Ridge to Culver City (California) | 1,669.39 mi (2,686.62 km) |
| River Ridge to Cumberland (Maryland) | 931.85 mi (1,499.67 km) |
| River Ridge to Cupertino (California) | 1,890.10 mi (3,041.82 km) |
| River Ridge to Cutler Bay (Florida) | 675.55 mi (1,087.20 km) |
| River Ridge to Cutlerville (Michigan) | 924.82 mi (1,488.36 km) |
| River Ridge to Cuyahoga Falls (Ohio) | 914.52 mi (1,471.78 km) |
| River Ridge to Cypress (California) | 1,648.46 mi (2,652.95 km) |
| River Ridge to Cypress Gardens (Florida) | 533.09 mi (857.92 km) |
| River Ridge to Cypress Lake (Florida) | 558.61 mi (899.00 km) |
| River Ridge to D'Iberville (Mississippi) | 86.33 mi (138.93 km) |
| River Ridge to Dakota Ridge (Colorado) | 1,075.26 mi (1,730.46 km) |
| River Ridge to Dale City (Virginia) | 947.14 mi (1,524.28 km) |
| River Ridge to Dallas (Georgia) | 417.21 mi (671.43 km) |
