There are
1,995 mi
from Gresham, OR to Macomb, IL
That's the driving distance. It would take 1 day 10 hours to go from Gresham, Oregon to Macomb, Illinois.
The flight distance (direct flight from Gresham, OR to Macomb, IL) is 1,631.37 mi.
1,995 mi = 3,211.28 kms