Nursing homes in Illinois
How CMS rates the state's 667 certified nursing homes, where they are concentrated, and how that compares with the national dataset.
At a glance
- Nursing homes
- 667
- CMS-certified
- Rated by CMS
- 663
- of 667
- Counties
- 96
- CMS data
- 2026-08-21
How Illinois compares
The state's CMS overall rating profile against the full national dataset, on the same scale.
CMS overall rating distribution
How Illinois's certified nursing homes spread across the CMS five-star overall rating, compared with the national dataset.
View as a table
| Rating | Providers | Share | National |
|---|---|---|---|
| CMS overall rating 5 | 94 | 14.1% | 20.7% |
| CMS overall rating 4 | 103 | 15.4% | 19.0% |
| CMS overall rating 3 | 101 | 15.1% | 19.3% |
| CMS overall rating 2 | 139 | 20.8% | 20.5% |
| CMS overall rating 1 | 226 | 33.9% | 19.6% |
| Not rated | 4 | 0.6% | 0.9% |
| Total | 667 | 100.0% | 100.0% |
State shares are calculated from the 667 CMS-certified nursing homes in Illinois; national shares from all 14,700 in this dataset. CMS overall star ratings are shown exactly as CMS publishes them and summarize past data, not current conditions. Facilities CMS does not rate are counted separately and never treated as zero.
CMS-reported data
Illinois’s largest divergence from the national dataset is at 1★: 33.9% of the state’s facilities against 19.6% nationally (+14.3 points). This reflects what CMS publishes for these facilities and is not a judgement about care quality in either population.
Where facilities are concentrated
The counties holding the largest share, with the full directory available below.
The 8 largest counties hold 53% of the state’s 667 nursing homes, across 96 counties in total.
- Cook County202 · 30%Search →
- Du Page County38 · 6%Search →
- Kane County25 · 4%Search →
- Lake County23 · 3%Search →
- Madison County17 · 3%Search →
- Will County16 · 2%Search →
- St. Clair County15 · 2%Search →
- Winnebago County15 · 2%Search →
Browse all 96 counties and 329 cities
Research federal records
CMS publishes enforcement and staffing records alongside the star ratings. These open the search workspace pre-filtered.
Related research
Frequently asked questions
How many nursing homes are in Illinois?
This dataset includes 667 CMS-certified nursing homes across 96 counties in Illinois, from the official CMS Provider Information file. The counties with the most are Cook County, Du Page County, Kane County, Lake County, Madison County.
How are Illinois nursing homes rated?
Each home carries the CMS five-star overall rating plus health-inspection, staffing, and quality-measure ratings. In this dataset, 94 are rated 5 stars, 226 are rated 1 star, and 4 are not rated by CMS.
How does Illinois compare with the national dataset?
663 of 667 Illinois facilities carry a CMS overall rating (99%), against 99% nationally across 14,700 facilities. The rating distribution above shows the state and national shares side by side. Differences reflect what CMS publishes and are not a judgement about care quality.
How can I verify a nursing home in Illinois with official sources?
SeniorCareRating.com organizes public CMS data and is not affiliated with CMS. Confirm current details on the official CMS Care Compare site and with the facility before making decisions.