| Portage to Chicago Ridge (Illinois) | 117.59 mi (189.24 km) |
| Portage to Chickasha (Oklahoma) | 829.02 mi (1,334.17 km) |
| Portage to Chico (California) | 1,882.89 mi (3,030.21 km) |
| Portage to Chicopee (Massachusetts) | 665.84 mi (1,071.56 km) |
| Portage to Chillicothe (Ohio) | 239.83 mi (385.96 km) |
| Portage to Chillum (Maryland) | 503.75 mi (810.71 km) |
| Portage to Chino (California) | 1,821.76 mi (2,931.84 km) |
| Portage to Chino Hills (California) | 1,825.86 mi (2,938.44 km) |
| Portage to Chino Valley (Arizona) | 1,531.43 mi (2,464.59 km) |
| Portage to Chippewa Falls (Wisconsin) | 346.32 mi (557.34 km) |
| Portage to Choctaw (Oklahoma) | 780.09 mi (1,255.43 km) |
| Portage to Chowchilla (California) | 1,862.88 mi (2,998.02 km) |
| Portage to Christiansburg (Virginia) | 445.11 mi (716.34 km) |
| Portage to Chubbuck (Idaho) | 1,362.58 mi (2,192.86 km) |
| Portage to Chula Vista (California) | 1,834.17 mi (2,951.81 km) |
