Sources & geography · K-12 education statistics
Common Core of Data(CCD)
The federal census of public schools and districts — the backbone of U.S. K-12 statistics.
The Common Core of Data is the National Center for Education Statistics' annual collection covering every public school, local education agency and state education agency in the country. It carries enrolment, staffing, demographics and school characteristics.
CCD is a census rather than a sample, so it has no sampling error — but it is compiled from state submissions, which means a state's late or revised filing propagates into the national file. It also lags: the most recent CCD year is typically two to three years behind the current school year, which is why state report cards are the better source for anything recent.
Also known as: CCD, NCES common core of data.
See common core of data in the data
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Common Core of Data — FAQ
What is common core of data in school and district data?+
The federal census of public schools and districts — the backbone of U.S. K-12 statistics. The Common Core of Data is the National Center for Education Statistics' annual collection covering every public school, local education agency and state education agency in the country. It carries enrolment, staffing, demographics and school characteristics.
Why does common core of data matter?+
CCD is a census rather than a sample, so it has no sampling error — but it is compiled from state submissions, which means a state's late or revised filing propagates into the national file. It also lags: the most recent CCD year is typically two to three years behind the current school year, which is why state report cards are the better source for anything recent.
Where does this school and district data come from?+
Core statistics come from the National Center for Education Statistics — the Common Core of Data, EDFacts, and the Civil Rights Data Collection. The most recent graduation rates and state report-card outcomes come directly from state education agencies, which publish sooner than the federal series. pumsdata is independent and not affiliated with NCES or any state agency.