Do you mean countries? If you do, the two countries that border the U.S. are Canada and Mexico.
Canada in the north, and Mexico in the south.
These two major North American nations border one another, and theirs is the longest unpatrolled international border in the world. You have to name specific places for the question to have meaning; at any number of places you can stand with one foot in each of the countries.
Canada to the North and Mexico to the South
Canada and the US
Canada and Mexico border the United States.Canada and Mexico.
Mexico in the south, and Canada in the north, both share their border with the USA.
Canada. The US only borders two other countries, Mexico to the south and Canada to the North.
The two countries that border the US is Canda (to the north of the US), and Mexico (to the south of the US).
The answer is 15. In the south Texas, Arizona, New Mexico and California border with Mexico. In the north Alaska, Washington, Idaho, Montana, North Dakota, Minnesota, Michigan, New York, New Hampshire, Vermont and Maine border Canada. Ohio and Pennsylvania have a water border with Canada. That's right bud, yr prtty smrt!
North Dakota shares a border with Canada. Both the Canadian Provinces of Saskatchewan and Manitoba share borders with North Dakota.
Canada