| Round Lake Beach to Indianapolis (Indiana) | 206.09 mi (331.68 km) |
| Round Lake Beach to Indianola (Iowa) | 290.70 mi (467.84 km) |
| Round Lake Beach to Indio (California) | 1,634.60 mi (2,630.63 km) |
| Round Lake Beach to Inglewood (California) | 1,732.91 mi (2,788.84 km) |
| Round Lake Beach to Inkster (Michigan) | 243.47 mi (391.83 km) |
| Round Lake Beach to Inver Grove Heights (Minnesota) | 300.91 mi (484.27 km) |
| Round Lake Beach to Inwood (New York) | 750.50 mi (1,207.82 km) |
| Round Lake Beach to Iona (Florida) | 1,149.35 mi (1,849.70 km) |
| Round Lake Beach to Ionia (Michigan) | 158.29 mi (254.75 km) |
| Round Lake Beach to Iowa City (Iowa) | 183.96 mi (296.05 km) |
| Round Lake Beach to Irmo (South Carolina) | 682.59 mi (1,098.53 km) |
| Round Lake Beach to Irondale (Alabama) | 615.31 mi (990.25 km) |
| Round Lake Beach to Ironton (Ohio) | 388.86 mi (625.82 km) |
| Round Lake Beach to Irvine (California) | 1,713.57 mi (2,757.72 km) |
| Round Lake Beach to Irving (Texas) | 817.13 mi (1,315.05 km) |
