| Round Lake Beach to Abilene (Texas) | 936.01 mi (1,506.37 km) |
| Round Lake Beach to Accokeek (Maryland) | 635.00 mi (1,021.94 km) |
| Round Lake Beach to Acworth (Georgia) | 603.93 mi (971.94 km) |
| Round Lake Beach to Ada (Oklahoma) | 700.54 mi (1,127.41 km) |
| Round Lake Beach to Addison (Illinois) | 31.16 mi (50.15 km) |
| Round Lake Beach to Addison (Texas) | 807.00 mi (1,298.75 km) |
| Round Lake Beach to Adelanto (California) | 1,667.00 mi (2,682.78 km) |
| Round Lake Beach to Adelphi (Maryland) | 626.77 mi (1,008.69 km) |
| Round Lake Beach to Adrian (Michigan) | 209.42 mi (337.03 km) |
| Round Lake Beach to Affton (Missouri) | 289.68 mi (466.19 km) |
| Round Lake Beach to Agoura Hills (California) | 1,747.52 mi (2,812.36 km) |
| Round Lake Beach to Aguadilla (Puerto Rico) | 2,059.21 mi (3,313.98 km) |
| Round Lake Beach to Aiken (South Carolina) | 702.08 mi (1,129.88 km) |
| Round Lake Beach to Akron (Ohio) | 349.83 mi (562.99 km) |
| Round Lake Beach to Alabaster (Alabama) | 636.54 mi (1,024.42 km) |
