There are
1,009 mi
from Gresham, OR to Fountain Valley, CA
That's the driving distance. It would take 19 hours 10 mins to go from Gresham, Oregon to Fountain Valley, California.
The flight distance (direct flight from Gresham, OR to Fountain Valley, CA) is 848.43 mi.
1,009 mi = 1.61 kms