Data report · federal figures, school year 2023-24

Special education complaints in Illinois

Name: Special Education Complaints in Illinois, 2023-24
Creator: Serenido
License: https://creativecommons.org/licenses/by/4.0/

Parents in Illinois filed 262 written special education complaints in 2023-24. 92.7% of its 150 complaint decisions were issued on time, ranking 40th of 50 (tied states share a rank).

262

written complaints

8.5 per 10,000 students, below the U.S. rate of 12.6

92.7%

decided on time

U.S.: 87%

70%

found a violation

105 of 150 decisions. U.S.: 62.7%

Five years in Illinois

Complaints rose from 113 in 2019-20 to 262 in 2023-24 (+132%), the 8th fastest growth of 37 states with at least 20 complaints in 2019-20. That is the 31st highest complaint rate for its size, out of 51. Illinois also recorded 254 due process complaints in 2023-24.

School year	Written complaints	Decided on time	Due process complaints
2019-20	113	97.3%	213
2020-21	91	98.4%	161
2021-22	164	97.3%	267
2022-23	244	91.5%	274
2023-24	262	92.7%	254

Where complaints go in Illinois
Illinois Department of Education, Office of Special Education
100 North First Street
Springfield, IL 62777
217-782-5589
The state's dispute resolution page

Check the state page for the exact address for a written complaint before you send one.

Thinking of filing? The Special Education Complaint Router tells you whether a state complaint or another route fits, with deadlines as real dates and the complaint written for you. The IEP Deadline Clock works out when the school's legal clock runs out, including Illinois's own evaluation timeline.

Source: U.S. Department of Education, IDEA Section 618 Dispute Resolution and Child Count files. Compare every state in the national report.

Cite this page

Serenido (2026). Special Education Complaints in Illinois, 2023-24. Data: U.S. Department of Education, IDEA Section 618 State Part B Dispute Resolution and Child Count, 2023-24. https://serenido.com/special-education-complaints-by-state/illinois/

Free to quote and republish with a link back. The full table is a CSV download.

Other states

Alabama · Alaska · Arizona · Arkansas · California · Colorado · Connecticut · Delaware · District of Columbia · Florida · Georgia · Hawaii · Idaho · Illinois · Indiana · Iowa · Kansas · Kentucky · Louisiana · Maine · Maryland · Massachusetts · Michigan · Minnesota · Mississippi · Missouri · Montana · Nebraska · Nevada · New Hampshire · New Jersey · New Mexico · New York · North Carolina · North Dakota · Ohio · Oklahoma · Oregon · Pennsylvania · Puerto Rico · Rhode Island · South Carolina · South Dakota · Tennessee · Texas · Utah · Vermont · Virginia · Washington · West Virginia · Wisconsin · Wyoming