Never before in this country's history has a minority ethnic group made up so large a share of the youngest Americans.
Polling has found significant support for both tougher enforcement and the so-called "path to citizenship," but several factors suggest that a new push for reform could be a difficult one.
While conflict over race may be America's most historical and inflamed division, more Americans currently see divisions between immigrants and native-born Americans, as well as rich-poor divides, as stronger social conflicts.
A survey of Mexico finds most dissatisfied with the direction of their country. Overwhelming numbers describe the economy, crime, drugs and corruption as very big problems. Many believe there is a better life in the U.S., would migrate if they had the chance, and would do so without authorization.
The flow of immigrants from Mexico to the United States has declined sharply since mid-decade, but there is no evidence of an increase during this period in the number of Mexican-born migrants returning home from the U.S.
The flow of immigrants from Mexico to the U.S. has declined sharply since mid-decade, but there is no apparent increase in the number of Mexican-born migrants returning home.
Hispanics now make up 22% of all children under the age of 18 in the United States -- up from 9% in 1980 -- and as their numbers have grown, their demographic profile has changed.
The ups and downs in the U.S. housing market over the past decade and a half have generated both greater gains and larger losses for minority groups than for whites.
A record 12.7 million Mexican immigrants lived in the United States in 2008, a 17-fold increase since 1970. More than half (55%) are unauthorized.
Unauthorized immigrants living in the U.S. are more geographically dispersed than in the past and are more likely than either U.S.-born residents or legal immigrants to live in a household with a spouse and children. But the recent rapid growth in the undocumented immigrant labor force has come to a halt. The new report also includes population and labor force estimates for each state.