50 miles, but be sure and stop in Blackfoot, Idaho and see the Potato Expo.
4.15 hours at 65 mph. The distance is 270 miles.
2.19 hours traveling 164 miles at the freeway speed of 75 mph. 164 / 65 = 2.52 hours 164 / 70 = 2.34 hours 164 / 75 = 2.19 hours
The 2000 census says that the population of Idaho Falls is 50,730.
Population size as of 2010 is 56,813. Area size is 17.1 square miles.