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.