The U.S.-Canada border is the longest international border in the world. What state in the U.S. is second to Alaska in terms of border length with Canada?

While Alaska has a more than 1500-mile border with our neighbors to the north, Michigan's border with Canada adds up just over 720 miles, making it the second longest. In third place is Maine with just over 600 miles of border. Minnesota and Montana round out the top 5.

Asked by Tom Cohen · Last updated 5 years ago · 12K views