Elementary and Postsecondary Education Data
National Center for Education Statistics data and publications
Includes the Common Core of Data (CCD). Some of these files can be downloaded in various file formats.
California Department of Education DataQuest
Data about California schools and districts including Academic Performance
Index (API) and Adequate Yearly Progress (AYP), enrollments, graduates, dropouts,
high school SAT/ACT/AP scores, and staffing.