| Portage to Central Point (Oregon) | 1,892.01 mi (3,044.90 km) |
| Portage to Centralia (Illinois) | 314.82 mi (506.66 km) |
| Portage to Centralia (Washington) | 1,851.63 mi (2,979.91 km) |
| Portage to Centreville (Virginia) | 486.77 mi (783.38 km) |
| Portage to Ceres (California) | 1,887.88 mi (3,038.26 km) |
| Portage to Cerritos (California) | 1,845.95 mi (2,970.77 km) |
| Portage to Chalco (Nebraska) | 548.22 mi (882.28 km) |
| Portage to Chalmette (Louisiana) | 881.03 mi (1,417.88 km) |
| Portage to Chambersburg (Pennsylvania) | 441.86 mi (711.11 km) |
| Portage to Chamblee (Georgia) | 578.82 mi (931.51 km) |
| Portage to Champaign (Illinois) | 200.60 mi (322.84 km) |
| Portage to Champlin (Minnesota) | 440.17 mi (708.39 km) |
| Portage to Chandler (Arizona) | 1,553.41 mi (2,499.97 km) |
| Portage to Chanhassen (Minnesota) | 439.19 mi (706.80 km) |
| Portage to Channahon (Illinois) | 147.62 mi (237.57 km) |
