| Highgate to Hutchinson (Minnesota) | 4,052.01 mi (6,521.08 km) |
| Highgate to Hutto (Texas) | 4,890.72 mi (7,870.85 km) |
| Highgate to Hyattsville (Maryland) | 3,656.73 mi (5,884.94 km) |
| Highgate to Hybla Valley (Virginia) | 3,671.52 mi (5,908.74 km) |
| Highgate to Idaho Falls (Idaho) | 4,713.79 mi (7,586.12 km) |
| Highgate to Idylwood (Virginia) | 3,670.18 mi (5,906.58 km) |
| Highgate to Ilchester (Maryland) | 3,637.57 mi (5,854.10 km) |
| Highgate to Immokalee (Florida) | 4,445.55 mi (7,154.42 km) |
| Highgate to Imperial (California) | 5,418.87 mi (8,720.82 km) |
| Highgate to Imperial Beach (California) | 5,485.28 mi (8,827.70 km) |
| Highgate to Independence (Kentucky) | 3,962.01 mi (6,376.24 km) |
| Highgate to Independence (Missouri) | 4,332.60 mi (6,972.65 km) |
| Highgate to Indian Trail (North Carolina) | 3,988.01 mi (6,418.08 km) |
| Highgate to Indiana (Pennsylvania) | 3,671.10 mi (5,908.06 km) |
| Highgate to Indianapolis (Indiana) | 3,985.88 mi (6,414.65 km) |
