| Portage to Hutchinson (Kansas) | 709.69 mi (1,142.14 km) |
| Portage to Hutchinson (Minnesota) | 477.23 mi (768.03 km) |
| Portage to Hutto (Texas) | 1,042.47 mi (1,677.70 km) |
| Portage to Hyattsville (Maryland) | 505.07 mi (812.83 km) |
| Portage to Hybla Valley (Virginia) | 506.47 mi (815.09 km) |
| Portage to Idaho Falls (Idaho) | 1,337.04 mi (2,151.76 km) |
| Portage to Idylwood (Virginia) | 495.80 mi (797.90 km) |
| Portage to Ilchester (Maryland) | 505.57 mi (813.63 km) |
| Portage to Immokalee (Florida) | 1,115.16 mi (1,794.68 km) |
| Portage to Imperial (California) | 1,754.42 mi (2,823.46 km) |
| Portage to Imperial Beach (California) | 1,841.43 mi (2,963.49 km) |
| Portage to Independence (Kentucky) | 231.04 mi (371.82 km) |
| Portage to Independence (Missouri) | 506.76 mi (815.56 km) |
| Portage to Indian Trail (North Carolina) | 560.05 mi (901.31 km) |
| Portage to Indiana (Pennsylvania) | 350.74 mi (564.46 km) |
