In Multilingual America by William Frey evaluates which parts of the United States has the most bilingual population. America is known to have a diverse population of races and culture which include languages. Many immigrants are moving to non-metro cities such as in South Eastern and Western States. California leads with 40% of the residents who speak a language besides English at home. Also, between 1990 and 2000, bilingual speakers have grown stronger in speaking English and continue to speak their own language.