| Slough to Hutchinson (Minnesota) | 4,038.67 mi (6,499.61 km) |
| Slough to Hutto (Texas) | 4,875.32 mi (7,846.07 km) |
| Slough to Hyattsville (Maryland) | 3,640.01 mi (5,858.03 km) |
| Slough to Hybla Valley (Virginia) | 3,654.78 mi (5,881.80 km) |
| Slough to Idaho Falls (Idaho) | 4,702.95 mi (7,568.67 km) |
| Slough to Idylwood (Virginia) | 3,653.48 mi (5,879.70 km) |
| Slough to Ilchester (Maryland) | 3,620.87 mi (5,827.23 km) |
| Slough to Immokalee (Florida) | 4,427.64 mi (7,125.61 km) |
| Slough to Imperial (California) | 5,406.83 mi (8,701.46 km) |
| Slough to Imperial Beach (California) | 5,473.50 mi (8,808.74 km) |
| Slough to Independence (Kentucky) | 3,946.19 mi (6,350.78 km) |
| Slough to Independence (Missouri) | 4,318.12 mi (6,949.35 km) |
| Slough to Indian Trail (North Carolina) | 3,971.09 mi (6,390.86 km) |
| Slough to Indiana (Pennsylvania) | 3,654.92 mi (5,882.03 km) |
| Slough to Indianapolis (Indiana) | 3,970.41 mi (6,389.75 km) |
