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 (including Alaska) lie on the U.S.–Canada border, four lie on the U.S.–Mexico border, and one has maritime borders with Cuba and The Bahamas.
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. (All three states border Lake Michigan, while Wisconsin also borders Lake Superior.)
| State | Adjacent province or territory | Length of border[1] | Description (if not land border) | |
|---|---|---|---|---|
| 1,538 mi (2,475 km) | ||||
| 721 mi (1,160 km) | Water boundary (land border on Crystal Island) | |||
| 611 mi (983 km) | Water boundary with Nova Scotia | |||
| 547 mi (880 km) | Water boundary with Ontario | |||
| 545 mi (877 km) | ||||
| 445 mi (716 km) | Water boundary with Ontario | |||
| 427 mi (687 km) | ||||
| 310 mi (499 km) | ||||
| 146 mi (235 km) | On Lake Erie | |||
| 90 mi (145 km) | ||||
| 58 mi (93 km) | ||||
| 45 mi (72 km) | ||||
| 42 mi (68 km) | On Lake Erie |
See also: List of municipalities and counties on the Mexico–United States border.
Four states lie on the U.S.–Mexico border.
| State | Adjacent Mexican state | Length of border | Description | |
|---|---|---|---|---|
| 1,241 mi (1,997 km) | ||||
| 373 mi (600 km) | ||||
| 180 mi (290 km) | ||||
| 140 mi (225 km) |
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 (in addition to its land border with Canada).
| State | Length of border | Bordering country | |
|---|---|---|---|
| 1,538 mi (2,475 km) | Russia (water boundary) (Canada to the east) | ||
| Cuba and the Bahamas (water boundaries) |