Best Hospitals in Illinois
Compare 194 Medicare-certified hospitals in Illinois by CMS five-star quality rating.
Hospitals in Illinois — by the numbers
Star-rating distribution — Illinois
About 17.9% of Illinois's population is aged 65 or older (2,271,298 residents), which shapes demand for hospitals. Source: U.S. Census Bureau.
Highest-rated in Illinois
Hospitals by city
By county
Adams County · Bond County · Bureau County · Champaign County · Christian County · Clay County · Clinton County · Coles County · Cook County · Crawford County · De Kalb County · De Witt County · Du Page County · Edgar County · Effingham County · Fayette County · Ford County · Franklin County · Fulton County · Greene County · Grundy County · Hamilton County · Hancock County · Hardin County · Henry County · Iroquois County · Jackson County · Jefferson County · Jersey County · Jo Daviess County · Kane County · Kankakee County · Knox County · La Salle County · Lake County · Lawrence County · Lee County · Livingston County · Logan County · Macon County · Macoupin County · Madison County · Marion County · Mason County · Massac County · Mc Donough County · Mc Henry County · Mc Lean County · Mercer County · Montgomery County · Morgan County · Ogle County · Peoria County · Perry County · Piatt County · Pike County · Randolph County · Richland County · Rock Island County · Saline County · Sangamon County · Schuyler County · Shelby County · St. Clair County · Stephenson County · Tazewell County · Union County · Vermilion County · Wabash County · Warren County · Washington County · Wayne County · Whiteside County · Will County · Williamson County · Winnebago County · Woodford County
How are these ratings calculated?
The CMS five-star quality rating comes from the Centers for Medicare & Medicaid Services. Read our plain-language explainer for hospitals to understand exactly what each star means — and what it does not.
Data as of June 20, 2026 · Source: CMS Provider Data Catalog.