AGURE 
According to the 2002 National Survey of Latinos, 46% of Hispanic adults speak both English and Spanish (see Figure 1), meaning that they report an ability to carry on a conversation in either English or Spanish at least “pretty well.” About 40% are largely Spanish speakers, and 14% are largely English speakers. Given that there were approximately 25 million Hispanic adults in the spring of 2002 (U.S. Census Bureau 2003), this suggests that there are roughly 11 million adult English/Spanish speaking bilingual Latinos. The remainder of the adult Hispanic population either possesses strong English or Spanish speaking skills, but not both.
The 2002 National Survey of Latinos provides an estimate of the prevalence of bilingualism among Hispanic adults only. Census data suggest that English/ Spanish bilingualism is more prevalent among Hispanic children than Hispanic adults. In 2000, reportedly, 59% of Hispanic children spoke Spanish at home, and spoke English either “well” or “very well,” in comparison to 53% of Hispanic adults. Thus, among the entire Hispanic population, children and adults, 46% is probably a lowerbound estimate of the prevalence of bilingualism in terms of speaking abilities.
AGURE  | The English and of AGURE Hispanic Spanish Adults Speaking  | Largely English  | Speakers  | 14%  | English/Spanish  | Speakers  | 46%  | 40%  | Largely Spanish  | Speakers  | (Sunvey orlatmos. December 20002 conducts Apr Junex2000, 