The following article is a list of highways found in the country of McGrathia.
| Highway Number | Direction | Starting Point (North or East) | Terminus (South or West) |
 Interstate 0 | East – West | San Francisco, California | Salem, Massachusetts |
 Route 1 | North – South | Fort Kent, Maine | Key West, Florida |
 Route 0 | East – West | Fayetteville, North Carolina | Compton, California |
 Interstate 57 | North – South | Chicago, Illinois | Sikeston, Missouri |