Halfway between Stockholm, Sweden, and Boise, Idaho, is approximately over the North Atlantic Ocean, near the northeastern coast of Canada. The exact midpoint would vary slightly depending on the specific flight paths or travel routes taken. However, a notable nearby city could be St. John's, Newfoundland and Labrador, which is one of the easternmost points in North America.
Pendleton, Oregon, seems to be about halfway between Boise and Tacoma. The Tri-Cities are nearby the halfway point, and they are a larger metro area.
181 miles
Monticello, UT
Fairfax, MO
La Grande, OR
wiinemucca
Price, UT
Forsyth, MT
Boise, Texas
According to Meetways.com, the halfway point between Boise, Idaho and Sioux Falls, South Dakota would be on US Highway 14 in the Bighorn National Forest near Dayton, Wyoming.
The halfway point is Gandy, UT.
If driving, the halfway point is in Salt Lake City, Utah, with about 341 miles to Boise and 341 miles to Montrose. As the bird flies, the halfway point is just north of Salt Lake City, around Layton or Bountiful.