Department of Education's primary database on public elementary and secondary education in the United States. Comparable across all states, the CCD consists of 4 surveys completed annually by state education departments to report data about all United States public elementary and secondary schools, local education agencies, and state education agencies. 3 categories of information are included: a general description of schools and school districts, including name, address, and phone number; data on students and staff, including demographics; and fiscal data, including revenues and current expenditures. Preceded by the Elementary & Secondary Education General Information Survey (ELSEGIS) (1967-1980). For comparisons between the Integrated Postsecondary Education Data System, Common Core of Data, Schools and Staffing Survey, and the Private School Universe Survey see the comparison chart.