ADA website lawsuits in Illinois
How many federal ADA lawsuits about websites are being filed in Illinois, where, by whom, and what to do if your business gets a demand letter or lawsuit.
412
federal ADA cases mentioning websites filed in Illinois from October 1, 2025 to September 30, 2026
#3
out of 52 states and territories by number of these cases
18.4%
of the 2,237 such cases we found nationwide
Where the cases were filed
| Federal court | Cases |
|---|---|
| Northern District of Illinois | 395 |
| Central District of Illinois | 16 |
| Southern District of Illinois | 1 |
Each court name links to the matching cases in the free CourtListener archive.
Illinois rules to know
Illinois is in the top three. With 585 federal website accessibility suits in 2025, Illinois ranked third in the country, according to the law firm Seyfarth Shaw. (Seyfarth Shaw)
If your Illinois business got a letter or lawsuit
- Check whether it's a lawsuit. A summons with a case number has a hard deadline. In federal court a response is usually due 21 days after you're served. Illinois state courts set their own deadlines.
- Don't pay and don't call the other side yet. Call your business insurer, then a lawyer who handles ADA Title III website defense. Your state bar's lawyer referral service can help you find one.
- Find out what's actually wrong with your site, and keep dated proof of your fixes. Courts have dismissed cases when businesses showed the problems were already fixed.
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How we count
Federal cases filed from October 1, 2025 to September 30, 2026 under nature of suit 446 (ADA, public accommodations) whose docket or documents in the free CourtListener archive mention a website. This is a minimum: the archive doesn't hold every federal filing, state-court suits aren't included, and demand letters that settle never reach a court. Being named in a lawsuit is an allegation, not a finding. Due Effort is not a law firm and this page is not legal advice. Data gathered October 17, 2026.