Hospitals in Rock County, WI
4 hospitals, 4 with emergency services. Acute Care Hospital: 3 · Critical Access Hospital: 1.
Compare these hospitals side by side →
- Beloit Health System(608) 364‑5011Acute Care Hospital · Beloit · ER · Medicare rating 3 of 5 · Full profile
- Edgerton Hospital and Health Services(608) 884‑3441Critical Access Hospital · Edgerton · ER · Full profile
- Mercy Health System Corp(608) 756‑6161Acute Care Hospital · Janesville · ER · Medicare rating 3 of 5 · Full profile
- SSM Health St Mary's Hospital - Janesville(608) 373‑8000Acute Care Hospital · Janesville · ER · Medicare rating 4 of 5 · Full profile
Cities in Rock County with hospitals
Nursing homes, hospice, home health and dialysis
Medicare-certified providers, with Medicare star ratings and official data.
Outpatient surgery centers
Medicare-certified ambulatory surgery centers: kinds of surgery, Medicare quality measures and patient survey.
Medical supply stores
Medical equipment suppliers enrolled in Medicare: wheelchairs, walkers, oxygen, CPAP, diabetic supplies and more.
ER wait times and Medicare ratings
Ranked only by official Medicare (CMS) numbers.
Care in Rock County: specialties, conditions and doctors
Specialties listed by hospitals here
Conditions listed by hospitals here
The number is how many hospitals here list it on their own website (hospitals with a reviewed website profile only).
Health centers, clinics and pharmacies in Rock County
Addiction and mental health treatment in Rock County
From SAMHSA’s FindTreatment.gov. In a crisis, call or text 988.
Common questions
How many hospitals are in Rock County, Wisconsin?
Our directory lists 4 hospitals in Rock County: Beloit Health System, Edgerton Hospital and Health Services, Mercy Health System Corp and SSM Health St Mary's Hospital - Janesville.
Which hospitals in Rock County have an emergency room?
According to Medicare (CMS) data: Beloit Health System, Edgerton Hospital and Health Services, Mercy Health System Corp and SSM Health St Mary's Hospital - Janesville. In a medical emergency, call 911.
What are the Medicare star ratings of hospitals in Rock County?
In the current CMS overall rating (1 to 5 stars): SSM Health St Mary's Hospital - Janesville, 4 stars, Beloit Health System, 3 stars and Mercy Health System Corp, 3 stars. Other hospitals here are not rated by CMS.
Source: Centers for Medicare & Medicaid Services (CMS), data updated 2026-07-22, retrieved 2026-10-29. Basic profiles: services not yet reviewed in detail.