| Grayslake to Jacksonville (Texas) | 819.25 mi (1,318.45 km) |
| Grayslake to Jacksonville Beach (Florida) | 910.75 mi (1,465.70 km) |
| Grayslake to James Island (South Carolina) | 797.31 mi (1,283.15 km) |
| Grayslake to Jamestown (New York) | 450.25 mi (724.61 km) |
| Grayslake to Jamestown (North Dakota) | 611.03 mi (983.36 km) |
| Grayslake to Janesville (Wisconsin) | 55.29 mi (88.99 km) |
| Grayslake to Jasmine Estates (Florida) | 1,015.69 mi (1,634.59 km) |
| Grayslake to Jasper (Alabama) | 588.04 mi (946.36 km) |
| Grayslake to Jasper (Indiana) | 278.73 mi (448.57 km) |
| Grayslake to Jefferson (Georgia) | 615.46 mi (990.49 km) |
| Grayslake to Jefferson (Louisiana) | 863.42 mi (1,389.53 km) |
| Grayslake to Jefferson City (Missouri) | 339.58 mi (546.50 km) |
| Grayslake to Jefferson Hills (Pennsylvania) | 443.35 mi (713.50 km) |
| Grayslake to Jefferson Valley-Yorktown (New York) | 735.30 mi (1,183.35 km) |
| Grayslake to Jeffersontown (Kentucky) | 313.84 mi (505.07 km) |
