| River Ridge to Cadillac (Michigan) | 1,021.72 mi (1,644.30 km) |
| River Ridge to Caguas (Puerto Rico) | 1,721.59 mi (2,770.63 km) |
| River Ridge to Cahokia (Illinois) | 594.60 mi (956.92 km) |
| River Ridge to Calabasas (California) | 1,685.26 mi (2,712.16 km) |
| River Ridge to Caldwell (Idaho) | 1,729.89 mi (2,784.00 km) |
| River Ridge to Caledonia (Wisconsin) | 896.54 mi (1,442.84 km) |
| River Ridge to Calera (Alabama) | 299.51 mi (482.02 km) |
| River Ridge to Calexico (California) | 1,500.03 mi (2,414.06 km) |
| River Ridge to Calhoun (Georgia) | 439.56 mi (707.40 km) |
| River Ridge to California (Maryland) | 971.89 mi (1,564.11 km) |
| River Ridge to California City (California) | 1,644.18 mi (2,646.05 km) |
| River Ridge to Callaway (Florida) | 279.15 mi (449.25 km) |
| River Ridge to Calumet City (Illinois) | 818.88 mi (1,317.87 km) |
| River Ridge to Calverton (Maryland) | 981.03 mi (1,578.82 km) |
| River Ridge to Camano (Washington) | 2,114.51 mi (3,402.97 km) |
