* Instability in the number of counties reporting affects the national median for this data series.
Years Available: 1988–2017
Permanent Link: http://data.sagepub.com/sagestats/4559
General Notes: *Median value gives the value for the "average" county for this metric, the 50th percentile of all counties reporting data. ** Students who have written Individualized Education Program (IEP) under the Individuals with Disabilities Education Act (IDEA), Part B. Public schools and public charter schools are sometimes administered out-of-state. SAGE Publications has excluded enrollment totals from those schools because they do not neatly fall under the umbrella of a county within the state that administers them, thus rendering county enrollment totals unreliable for comparison purposes. Data from some reporting schools in Alaska prior to 1992 were excluded due to complications involving changing geographic boundaries. Data as reported by the school district. Starting with 2011 data, a *** indicates the data are not applicable, missing, or do not meet NCES data quality standards.