This report on the use of the Spanish language in the United States discusses the Spanish-speaking population, the language itself, and bilingual education in the United States. The background about the Spanish-speaking population includes the following topics: (1) "A Nations of Immigrants," (2) "The Population of the Spanish-Speaking Minority," and (3) "Characteristics of the Spanish-Speaking Minority." The second section, on the use of the Spanish language in the United States, discusses Spanish as a learned language, as a mother tongue, and as an official language. The third section, on bilingual education in the United States, discusses the history of bilingual education up to 1968, and then outlines recent developments after 1968. (NCR)