There are
1,924 mi
from Dekalb, IL to Norco, CA
That's the driving distance. It would take 1 day 9 hours to go from Dekalb, Illinois to Norco, California.
The flight distance (direct flight from Dekalb, IL to Norco, CA) is 1,654.53 mi.
1,924 mi = 3,096.14 kms