| Grays to Hutchinson (Minnesota) | 4,072.63 mi (6,554.27 km) |
| Grays to Hutto (Texas) | 4,912.02 mi (7,905.13 km) |
| Grays to Hyattsville (Maryland) | 3,678.21 mi (5,919.50 km) |
| Grays to Hybla Valley (Virginia) | 3,693.00 mi (5,943.30 km) |
| Grays to Idaho Falls (Idaho) | 4,733.16 mi (7,617.29 km) |
| Grays to Idylwood (Virginia) | 3,691.65 mi (5,941.14 km) |
| Grays to Ilchester (Maryland) | 3,659.04 mi (5,888.66 km) |
| Grays to Immokalee (Florida) | 4,466.86 mi (7,188.72 km) |
| Grays to Imperial (California) | 5,438.87 mi (8,753.02 km) |
| Grays to Imperial Beach (California) | 5,505.16 mi (8,859.69 km) |
| Grays to Independence (Kentucky) | 3,983.39 mi (6,410.65 km) |
| Grays to Independence (Missouri) | 4,353.65 mi (7,006.51 km) |
| Grays to Indian Trail (North Carolina) | 4,009.48 mi (6,452.64 km) |
| Grays to Indiana (Pennsylvania) | 3,692.53 mi (5,942.56 km) |
| Grays to Indianapolis (Indiana) | 4,007.19 mi (6,448.95 km) |
