Mexican Americans are Americans

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 of Mexican

Mexican people

Mexican people refers to all persons from Mexico, a multiethnic country in North America, and/or who identify with the Mexican cultural and/or national identity....

 descent

Genealogy

Genealogy is the study of families and the tracing of their lineages and history. Genealogists use oral traditions, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of its members...

. As of July 2009, Mexican Americans make up 10.3% of the United States' population with over 31,689,000 Americans listed as of Mexican ancestry. Mexican Americans comprise 66% of all Hispanics and Latinos

Hispanic and Latino Americans

Hispanic or Latino Americans are Americans with origins in the Hispanic countries of Latin America or in Spain, and in general all persons in the United States who self-identify as Hispanic or Latino.1990 Census of Population and Housing: A self-designated classification for people whose origins...

 in the United States. The United States is home to the second largest Mexican community in the world second only to Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 itself comprising nearly 22% of the entire Mexican origin population of the world.