There are
2,790 mi
from Concord, CA to Takoma Park, MD
That's the driving distance. It would take 2 days 1 hour to go from Concord, California to Takoma Park, Maryland.
The flight distance (direct flight from Concord, CA to Takoma Park, MD) is 2,411.08 mi.
2,790 mi = 3.22 kms