Thirteen states in the United States share a border with Canada. These states are:

• Alaska
• Idaho
• Maine
• Michigan
• Minnesota
• Montana
• New Hampshire
• New York
• North Dakota
• Ohio
• Pennsylvania
• Vermont
• Washington

The Canada-United States border is the longest international border in the world, stretching for 5,525 miles (8,891 km) from the Atlantic Ocean in the east to the Pacific Ocean in the west. The boundary is shared by eight Canadian provinces and thirteen American states.