| Grayslake to Harrison (Wisconsin) | 128.70 mi (207.12 km) |
| Grayslake to Harrisonburg (Virginia) | 551.97 mi (888.31 km) |
| Grayslake to Hartford (Connecticut) | 787.46 mi (1,267.29 km) |
| Grayslake to Hartford (Wisconsin) | 70.05 mi (112.73 km) |
| Grayslake to Hartselle (Alabama) | 549.13 mi (883.73 km) |
| Grayslake to Hartsville (Tennessee) | 423.01 mi (680.78 km) |
| Grayslake to Harvey (Illinois) | 54.30 mi (87.39 km) |
| Grayslake to Harvey (Louisiana) | 867.78 mi (1,396.56 km) |
| Grayslake to Hasbrouck Heights (New Jersey) | 727.61 mi (1,170.97 km) |
| Grayslake to Haslett (Michigan) | 187.03 mi (301.00 km) |
| Grayslake to Hastings (Minnesota) | 292.47 mi (470.68 km) |
| Grayslake to Hastings (Nebraska) | 549.17 mi (883.81 km) |
| Grayslake to Hattiesburg (Mississippi) | 765.58 mi (1,232.09 km) |
| Grayslake to Hauppauge (New York) | 772.24 mi (1,242.81 km) |
| Grayslake to Havelock (North Carolina) | 789.36 mi (1,270.36 km) |
