There are
789 mi
from Elgin, IL to Hopatcong, NJ
That's the driving distance. It would take 14 hours 51 mins to go from Elgin, Illinois to Hopatcong, New Jersey.
The flight distance (direct flight from Elgin, IL to Hopatcong, NJ) is 708.42 mi.
789 mi = 1,269.93 kms