| Portage to Cold Springs (Nevada) | 1,790.72 mi (2,881.89 km) |
| Portage to Coldwater (Michigan) | 35.04 mi (56.39 km) |
| Portage to Colesville (Maryland) | 499.19 mi (803.37 km) |
| Portage to College (Alaska) | 2,832.79 mi (4,558.94 km) |
| Portage to College Park (Georgia) | 594.86 mi (957.33 km) |
| Portage to College Park (Maryland) | 504.91 mi (812.57 km) |
| Portage to College Station (Texas) | 997.48 mi (1,605.28 km) |
| Portage to Collegedale (Tennessee) | 494.70 mi (796.14 km) |
| Portage to Colleyville (Texas) | 900.90 mi (1,449.85 km) |
| Portage to Collierville (Tennessee) | 541.52 mi (871.48 km) |
| Portage to Collinsville (Illinois) | 336.31 mi (541.24 km) |
| Portage to Colonia (New Jersey) | 594.42 mi (956.63 km) |
| Portage to Colonial Heights (Virginia) | 552.56 mi (889.26 km) |
| Portage to Colonial Park (Pennsylvania) | 474.57 mi (763.75 km) |
| Portage to Colorado Springs (Colorado) | 1,030.27 mi (1,658.06 km) |
