There are
2,745 mi
from Highland Park, NJ to Walnut, CA
That's the driving distance. It would take 2 days 1 hour to go from Highland Park, New Jersey to Walnut, California.
The flight distance (direct flight from Highland Park, NJ to Walnut, CA) is 2,405.66 mi.
2,745 mi = 4,418.36 kms