Spanish is an official language of twenty-one sovereign states and the United Nations, European Union, Organization of American States, and Mercosur. Of course, it goes without saying that it is an increasing demographic within the United States. Each of the flags below links to an official web site. At the bottom of the page there are links to Department of State, Library of Congress, and CIA information on demographics, geography, history, government, economy, diplomacy, and travel.
CIA World Factbook
Argentina, Bolivia, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Equatorial Guinea, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Spain, United States, Uruguay, Venezuela
US Department of State Country Profiles
Argentina, Bolivia, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Equatorial Guinea, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Spain, Uruguay, Venezuela
Library of Congress Country Studies
Bolivia, Chile, Colombia, Cuba, Dominican Republic, Ecuador, El Salvador, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Spain, Uruguay, Venezuela