argest Latino communities recent Pew Hispanic Center report argest Latino communities Pew Research Center some 33 million U.S. Latinos pewhispanic.org largest nationality amongst US Hispanics Overview Pew Hispanic Center. The Pew Hispanic Center reports: Mexican Migration to the US May Be Reversing, Report Says Pew Hispanic Center Pew Hispanic Center argest Latino communities largest Latin American immigrant groups Pew Hispanic Center largest Latin American immigrant groups some 33 million U.S. Latinos argest Latino communities Overview 55.7 million Hispanics living in the United States