Similarities Between

They are both fairly populated countries.

they are fairly warm in months like may-october

yea u get it.

• Large territory spanning almost entire continents
• Large populations
• Both are Democracies ruled by President and a two-chamber parliament
• Both are federations
• Both have nuclear weapons and a large standing army
• Both have a strong national idea based on historic exclusivity and destiny
• Both may be seen by the rest of the world as having imperial ambitions, but both would probably deny it
• Both have a wide variery of natural resources and climates

There's probably more.

First, the common features. Mexico and the United States are North American nations, bordering each other. Both are also commercial and business partners as part of the North American Free Trade Agreement (NAFTA) and have a rather long and complex history, including conflicts such as the Mexican-American War (1846-1848), as well as diplomatic and military cooperation, like the economic and material support that Mexico provided for the Allies during World War II (1939-1945). The population of the Southwestern United States has more affinity with Mexico, since several states like California, Arizona, New Mexico and Texas used to belong to Mexico, and the population of these states has a great percentage of Mexican-Americans.

Now, on the differences. Mexico is a Latin American nation with a large Spanish-speaking, Roman Catholic population (Roman Catholic: 88%, Protestant: 5.2%) while the U.S. is an Anglo American country with a majority of English-speaking population and a dominance of Protestantism (Protestant: 52%, Roman Catholic 24%). The racial make up of Mexico is predominantly of mestizo (60%) and Amerindian people (30%) while Americans are predominantly European (52%) and on a lesser degree, African (13%), Asian (5%), and Hispanic people of many ethnicities (15%) of which the majority, have Mexican ancestry. Both the U.S. and Mexico are federal presidential representative republics; Mexico has 31 independent states and one federal district while the U.S. has 50 states and one such federal district. Finally, the United States has the second largest economy in the world behind China, while Mexico is an emerging market ranking at the 11th position.

Finally, some statistics (2016 est.):
Population:

• Mexico: 123,166,749
  
• United States: 323,995,528
  

• Mexico: 1,964,375 sq km (758,449 sq mi)
  
• United States: 9,826,675 sq km (3,794,101 sq mi)
  

• Mexico: US$2.31 trillion (ranked 11th)
  
• United States: US$18.56 trillion (ranked 2nd)
  

• Mexico: US$18,900
  
• United States: US$57,300
  

• Mexico: 28 years
  
• United States: 37.9 years

Among what Italy and the Americas have in common are ancientmountains of cultural significance, cities of international importance, coastal economies, Italian food, people of Italian heritage, and Roman Catholicism. As an example, Italy is home to part of the Alps and to the Apennines. Latin America has the Andes Mountains. The United States of America boasts the Rockies.

For example, Italy has Rome. Latin America has Buenos Aires, Argentina, as a city of Italian immigrants and of world import. The United States has New York City.

In the way of another example, the Italian peninsula is surrounded on three sides by water, and on all sides in the cases of the Italian islands of Sardinia and Sicily. Latin America has coastal economies on all sides of the South American continent and the Caribbean islands, and on three sides of Central America. The United States has coastal economies of the east, south, and north.

In the way of still other examples, Italy and the Americas are prime locations for and sources of Italian food, people of Italian heritage, and the Roman Catholic religion.