Mexico is a country located in North America and is bordered by the United States to the north, Belize and Guatemala to its south, the Gulf of Mexico to its east and the North Pacific Ocean to its west. The country's total area is 1,972,550 square kilometers (761,601 square miles), or nearly 3 times the size of Texas.Its capital, Mexico City, is located in the south-central part of the country.he country's total area is 1,972,550 square kilometers (761,601 square miles), or nearly 3 times the size of Texas. Its capital, Mexico City, is located in the south-central part of the country.