| Round Lake Beach to Hutchinson (Kansas) | 597.37 mi (961.38 km) |
| Round Lake Beach to Hutchinson (Minnesota) | 359.18 mi (578.04 km) |
| Round Lake Beach to Hutto (Texas) | 971.02 mi (1,562.70 km) |
| Round Lake Beach to Hyattsville (Maryland) | 628.46 mi (1,011.42 km) |
| Round Lake Beach to Hybla Valley (Virginia) | 628.84 mi (1,012.03 km) |
| Round Lake Beach to Idaho Falls (Idaho) | 1,210.03 mi (1,947.36 km) |
| Round Lake Beach to Idylwood (Virginia) | 618.52 mi (995.41 km) |
| Round Lake Beach to Ilchester (Maryland) | 630.10 mi (1,014.05 km) |
| Round Lake Beach to Immokalee (Florida) | 1,164.79 mi (1,874.56 km) |
| Round Lake Beach to Imperial (California) | 1,633.32 mi (2,628.57 km) |
| Round Lake Beach to Imperial Beach (California) | 1,719.61 mi (2,767.44 km) |
| Round Lake Beach to Independence (Kentucky) | 300.55 mi (483.68 km) |
| Round Lake Beach to Independence (Missouri) | 399.15 mi (642.37 km) |
| Round Lake Beach to Indian Trail (North Carolina) | 644.19 mi (1,036.72 km) |
| Round Lake Beach to Indiana (Pennsylvania) | 477.32 mi (768.18 km) |
