There are
2,904 mi
from Walnut Creek, CA to Fort Pierce, FL
That's the driving distance. It would take 2 days 4 hours to go from Walnut Creek, California to Fort Pierce, Florida.
The flight distance (direct flight from Walnut Creek, CA to Fort Pierce, FL) is 2,509.90 mi.
2,904 mi = 4,673.89 kms