| Risca to Camas (Washington) | 4,815.15 mi (7,749.24 km) |
| Risca to Cambridge (Maryland) | 3,517.41 mi (5,660.73 km) |
| Risca to Cambridge (Massachusetts) | 3,149.23 mi (5,068.19 km) |
| Risca to Camden (Arkansas) | 4,434.30 mi (7,136.32 km) |
| Risca to Camden (New Jersey) | 3,416.43 mi (5,498.22 km) |
| Risca to Cameron Park (California) | 5,165.17 mi (8,312.53 km) |
| Risca to Camp Pendleton South (California) | 5,357.48 mi (8,622.04 km) |
| Risca to Camp Springs (Maryland) | 3,540.84 mi (5,698.42 km) |
| Risca to Camp Verde (Arizona) | 5,094.07 mi (8,198.11 km) |
| Risca to Campbell (California) | 5,274.37 mi (8,488.27 km) |
| Risca to Campbellsville (Kentucky) | 3,951.05 mi (6,358.60 km) |
| Risca to Campton Hills (Illinois) | 3,857.81 mi (6,208.54 km) |
| Risca to Canby (Oregon) | 4,841.25 mi (7,791.23 km) |
| Risca to Candelaria (Puerto Rico) | 4,082.13 mi (6,569.56 km) |
| Risca to Candler-McAfee (Georgia) | 4,079.61 mi (6,565.50 km) |
