| Johnston to Hutchinson (Kansas) | 334.46 mi (538.27 km) |
| Johnston to Hutchinson (Minnesota) | 223.15 mi (359.12 km) |
| Johnston to Hutto (Texas) | 799.22 mi (1,286.21 km) |
| Johnston to Hyattsville (Maryland) | 901.64 mi (1,451.05 km) |
| Johnston to Hybla Valley (Virginia) | 899.64 mi (1,447.83 km) |
| Johnston to Idaho Falls (Idaho) | 937.83 mi (1,509.29 km) |
| Johnston to Idylwood (Virginia) | 890.29 mi (1,432.78 km) |
| Johnston to Ilchester (Maryland) | 906.05 mi (1,458.15 km) |
| Johnston to Immokalee (Florida) | 1,265.11 mi (2,036.01 km) |
| Johnston to Imperial (California) | 1,342.79 mi (2,161.02 km) |
| Johnston to Imperial Beach (California) | 1,428.26 mi (2,298.57 km) |
| Johnston to Independence (Kentucky) | 518.71 mi (834.78 km) |
| Johnston to Independence (Missouri) | 182.91 mi (294.36 km) |
| Johnston to Indian Trail (North Carolina) | 841.78 mi (1,354.71 km) |
| Johnston to Indiana (Pennsylvania) | 760.53 mi (1,223.95 km) |
