| Mack to Hutchinson (Kansas) | 717.50 mi (1,154.70 km) |
| Mack to Hutchinson (Minnesota) | 635.53 mi (1,022.79 km) |
| Mack to Hutto (Texas) | 939.59 mi (1,512.12 km) |
| Mack to Hyattsville (Maryland) | 414.53 mi (667.12 km) |
| Mack to Hybla Valley (Virginia) | 409.05 mi (658.31 km) |
| Mack to Idaho Falls (Idaho) | 1,443.99 mi (2,323.88 km) |
| Mack to Idylwood (Virginia) | 401.49 mi (646.13 km) |
| Mack to Ilchester (Maryland) | 423.58 mi (681.68 km) |
| Mack to Immokalee (Florida) | 899.04 mi (1,446.87 km) |
| Mack to Imperial (California) | 1,771.81 mi (2,851.45 km) |
| Mack to Imperial Beach (California) | 1,861.76 mi (2,996.21 km) |
| Mack to Independence (Kentucky) | 15.37 mi (24.74 km) |
| Mack to Independence (Missouri) | 518.18 mi (833.93 km) |
| Mack to Indian Trail (North Carolina) | 358.87 mi (577.55 km) |
| Mack to Indiana (Pennsylvania) | 309.98 mi (498.87 km) |
