From the National Center for Education Statistics; reports include The Condition of Education, The Digest of Education Statistics, High School Drop Out and Completion Rates in the United States, Indicators of School Crime and Safety, and Projections of Education Statistics
"Search the Internet Crossroads for online resources related to social science data! DISC's Internet Crossroads contains over 950 annotated links to data-related resources on the Internet." From the University of Wisconsin @ Madison Libraries.
"The main purpose of this database is to produce and publish indicators and analysis on the operation, evolution and impact of education, from early childhood through formal education to learning and training throughout life. The main publications based on these data are the annual publications Education at a Glance and Education Policy Analysis."