Mexicans are the citizens and nationals of the United Mexican States. The Mexican people have varied origins with the most spoken language being Spanish, but many also speak languages from 68 different Indigenous linguistic groups and other languages brought to Mexico by expatriates or recent immigration. In 2020, 19.4% of Mexico's population identified as Indigenous. There are currently about 12 million Mexican nationals residing outside Mexico, with about 11.7 million living in the United States. The larger Mexican diaspora can also include individuals that trace ancestry to Mexico and self-identify as Mexican but are not necessarily Mexican by citizenship. The United States has the largest Mexican population in the world after Mexico at 37,186,361 in 2019.