| Slupca to Caguas (Puerto Rico) | 4,973.91 mi (8,004.74 km) |
| Slupca to Cahokia (Illinois) | 4,823.43 mi (7,762.56 km) |
| Slupca to Calabasas (California) | 5,914.66 mi (9,518.73 km) |
| Slupca to Caldwell (Idaho) | 5,276.10 mi (8,491.06 km) |
| Slupca to Caledonia (Wisconsin) | 4,520.65 mi (7,275.29 km) |
| Slupca to Calera (Alabama) | 4,998.96 mi (8,045.05 km) |
| Slupca to Calexico (California) | 5,925.62 mi (9,536.36 km) |
| Slupca to Calhoun (Georgia) | 4,860.44 mi (7,822.12 km) |
| Slupca to California (Maryland) | 4,353.50 mi (7,006.28 km) |
| Slupca to California City (California) | 5,831.60 mi (9,385.05 km) |
| Slupca to Callaway (Florida) | 5,117.81 mi (8,236.31 km) |
| Slupca to Calumet City (Illinois) | 4,572.41 mi (7,358.59 km) |
| Slupca to Calverton (Maryland) | 4,331.97 mi (6,971.63 km) |
| Slupca to Camano (Washington) | 5,112.02 mi (8,227.00 km) |
| Slupca to Camarillo (California) | 5,918.03 mi (9,524.15 km) |
