In 2020–21, the number of students ages 3–21 who received special education services under the Individuals with Disabilities Education Act (IDEA) was 7.2 million, or 15 percent of all public school students. Among students receiving special education services, the most common category of disability was specific learning disabilities (33 percent).
Enacted in 1975, the Individuals with Disabilities Education Act (IDEA), formerly known as the Education for All Handicapped Children Act, mandates the provision of a free and appropriate public school education for eligible students ages 3–21. Eligible students are those identified by a team of professionals as having a disability that adversely affects academic performance and as being in need of special education and related services. Data collection activities to monitor compliance with IDEA began in 1976. From school year 2009–10 through 2020–21, the number of students ages 3–21 who received special education services under IDEA increased from 6.5 million, or 13 percent of total public school enrollment, to 7.2 million, or 15 percent of total public school enrollment.1 In fall 2020, after the beginning of the coronavirus pandemic, overall enrollment in public schools was 3 percent lower than in fall 2019 (see Public School Enrollment). Meanwhile, the number of students receiving IDEA services was about 1 percent lower in 2020–21 than in 2019–20. This was the first drop in the number of students receiving IDEA services since 2011–12. However, the percentage of students who were served under IDEA was higher in 2020–21 (15 percent) than in 2019–20 (14 percent), continuing the upward trend.
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1 Other health impairments include having limited strength, vitality, or alertness due to chronic or acute health problems such as a heart condition, tuberculosis, rheumatic fever, nephritis, asthma, sickle cell anemia, hemophilia, epilepsy, lead poisoning, leukemia, or diabetes.
NOTE: Data are for the 50 states and the District of Columbia only. Orthopedic impairment, visual impairment, traumatic brain injury, and deaf-blindness are not shown because they each account for less than 0.5 percent of students served under IDEA. Due to categories not shown, detail does not sum to 100 percent. Although rounded numbers are displayed, the figures are based on unrounded data.
SOURCE: U.S. Department of Education, Office of Special Education Programs, Individuals with Disabilities Education Act (IDEA) database. Retrieved February 25, 2022, from https://data.ed.gov/dataset/idea-section-618-data-products. See Digest of Education Statistics 2021, table 204.30.
NOTE: Based on the preliminary total public school enrollment in prekindergarten through grade 12 by race/ethnicity. Although data are for the 50 states and the District of Columbia, data limitations result in inclusion of a small (but unknown) number of students from other jurisdictions. Race categories exclude persons of Hispanic ethnicity. Although rounded numbers are displayed, the figures are based on unrounded data.
SOURCE: U.S. Department of Education, Office of Special Education Programs, Individuals with Disabilities Education Act (IDEA) database. Retrieved February 25, 2022, from https://data.ed.gov/dataset/idea-section-618-data-products; and National Center for Education Statistics, Common Core of Data (CCD), “State Nonfiscal Survey of Public Elementary/Secondary Education,” 2020-21 preliminary. See Digest of Education Statistics 2021, table 204.50.
NOTE: Data are for the 50 states and the District of Columbia only. For fall 2009 through fall 2018, school-age children include children ages 6 through 21. Due to changes in reporting requirements in the fall 2019 data collection, the number of 6- to 21-year-olds served may include some 5-year-olds enrolled in kindergarten. Starting in the fall 2020 data collection, school-age children include 6- to 21-year-olds and 5-year-olds enrolled in kindergarten.
SOURCE: U.S. Department of Education, Office of Special Education Programs, Individuals with Disabilities Education Act (IDEA) database, retrieved February 25, 2022, from https://data.ed.gov/dataset/idea-section-618-data-products-state-level-data-files. See Digest of Education Statistics 2021, table 204.60.
1 Received a certificate of completion, modified diploma, or some similar document, but did not meet the same standards for graduation as those for students without disabilities. Includes 96 students from two states who exited an educational program through receipt of an alternate diploma.
NOTE: Data in this figure are for the 50 states, the District of Columbia, the Bureau of Indian Education, American Samoa, the Federated States of Micronesia, Guam, the Northern Marianas, Puerto Rico, the Republic of Palau, the Republic of the Marshall Islands, and the U.S. Virgin Islands. Race categories exclude persons of Hispanic ethnicity. Although rounded numbers are displayed, the figures are based on unrounded data.
SOURCE: U.S. Department of Education, Office of Special Education Programs, Individuals with Disabilities Education Act (IDEA) Section 618 Data Products: State Level Data Files. Retrieved February 25, 2022, from https://data.ed.gov/dataset/idea-section-618-data-products-state-level-data-files. See Digest of Education Statistics 2021, table 219.90.
1 Totals presented in this indicator include imputations for states for which data were unavailable. See reference tables in the Digest of Education Statistics for more information. Data for students ages 3–21 and school-age students served under IDEA are for the 50 states and the District of Columbia only. The number of children served as a percentage of total enrollment is based on total public school enrollment in prekindergarten through grade 12. Enrollment data for 2020–21 are preliminary.
2 Speech or language impairment is defined as a communication disorder such as stuttering, impaired articulation, a language impairment, or a voice impairment that adversely affects a child’s educational performance.
3 Starting in the 2020–21 data collection, school-age students include 6- to 21-year-olds and 5-year-olds enrolled in kindergarten.
4 Refers to students who are enrolled by their parents or guardians in regular private schools and have their basic education paid for through private resources but receive special education services at public expense.
5 For fall 2009 through fall 2018, school-age students include students ages 6–21. Due to changes in reporting requirements in the fall 2019 data collection, the number of 6- to 21-year-olds served may include some 5-year-olds enrolled in kindergarten in that year. Starting in the fall 2020 data collection, school-age students include 6- to 21-year-olds and 5-year-olds enrolled in kindergarten.
6 Data for students ages 14–21 served under IDEA who exited school are for the 50 states, the District of Columbia, the Bureau of Indian Education, American Samoa, the Federated States of Micronesia, Guam, the Northern Marianas, Puerto Rico, the Republic of Palau, the Republic of the Marshall Islands, and the U.S. Virgin Islands.
7 “Dropped out” is defined as students who were enrolled at some point in the reporting year, were not enrolled at the end of the reporting year, and did not exit for any of the other reasons described.
8 Refers to students who received a certificate of completion, modified diploma, or some similar document but did not meet the same standards for graduation as those for students without disabilities. In 2019–20, the number of students who received an alternative certificate includes 96 students from two states who exited an educational program through receipt of an alternate diploma.
9 Each state determines its maximum age for receiving special education services. At the time these data were collected, the maximum age across states generally ranged from 20 to 22 years old.