The state of Chihuahua, with an area of 95,542.9 square miles. (almost the same size of Oregon).
Mexico is roughly three times the size of Texas.
No, Mexico is much larger. Norway is about the same size as New Mexico. Norway is about 323,802 square kilometers, and Mexico is about 1,972,550 square kilometers. Sizes taken from the CIA factbook
With 71,699 square miles, Veracruz is a bit larger than Washington state (71,300 sq mi).
Shape and geography like California, but in square miles probably closer to Arizona or New Mexico.
It has an area of 123,181 square kilometers (47,560.4 sq mi). It is roughly the same size of the US state of Mississippi.
Vietnam is approximately 331,212 square kilometers in size, making it about the same size as the state of New Mexico in the United States.
Mexico
The relative size of Mexico is 761,601-square miles. It is three times the size of the state of Texas. Mexico City is the capital of Mexico.
Antarctica is about the same size as USA and Mexico combined -- significantly larger than Belgium.
I guess you mean either a) the largest or b) the most important. The largest state in Mexico in terms of area is Chihuahua with 244,938 sq km (94,571). It is slightly smaller than Michigan or practically the same size of France. The most important would be the State of Mexico (capital: Toluca) with 14.35 million inhabitants, and a gross state product of US$86.66 billion.
Tlaxcala (capital: Tlaxcala de Xicotencatl) is the second smallest state in Mexico, with 4,016 square kilometers (1,551 sq mi).