International border states of the United States

The international border states are those states in the U.S. that border either the Bahamas, Canada, Cuba, Mexico, or Russia. With a total of eighteen of such states, thirteen lie on the Canada–United [States border#Border lengths and regions|U.S.–Canada border], four lie on the U.S.–Mexico border, and one has maritime borders with Cuba and The Bahamas.

Border with Canada

Thirteen states lie on the U.S.–Canada border. The U.S. states of Indiana, Illinois, and Wisconsin do not share a direct geographic border with Canada. They do, however, possess customs facilities because they border the Great Lakes, on which international commerce comes from Canada.

State	Adjacent province or territory	Length of border	Description
Alaska	British Columbia and Yukon	1,538 mi
Michigan	Ontario	721 mi	Water boundary
Maine	New Brunswick, Nova Scotia, and Quebec	611 mi	Water boundary with Nova Scotia
Minnesota	Manitoba and Ontario	547 mi	Water boundary with Ontario
Montana	Alberta, British Columbia, and Saskatchewan	545 mi
New York	Ontario and Quebec	445 mi	Water and land boundary with Ontario
Washington	British Columbia	427 mi
North Dakota	Manitoba and Saskatchewan	310 mi
Ohio	Ontario	146 mi	On Lake Erie
Vermont	Quebec	90 mi
New Hampshire	Quebec	58 mi
Idaho	British Columbia	45 mi
Pennsylvania	Ontario	42 mi	On Lake Erie

Four states lie on the U.S.–Mexico border.

State	Adjacent Mexican state	Length of border	Description
Texas	Chihuahua, Coahuila, Nuevo Leon, and Tamaulipas	1,241 mi
Arizona	Baja California and Sonora	373 mi
New Mexico	Chihuahua and Sonora	180 mi
California	Baja California	140 mi

In addition to the states bordering on Canada and Mexico, the U.S. state of Florida shares maritime boundaries with Cuba and the Bahamas, and Alaska shares a water boundary with Russia.