Carroll County, Maryland COVID-19 Cases Carroll County is currently at a LOW COVID-19 Hospital Admission level. Maryland Department of Health data for Carroll County as of 9/26/23: Total cases: 28,843 (+40 since 9/19/23) Total deaths: 487 (+1) Case rate per 100,000 residents, 7-day average: 3.59 (+.59 since 9/19/23) Positivity rate is no longer available through the Maryland Department of Health For additional Maryland COVID-19 data, visit the Maryland Department of Health’s COVID-19 data page. Learn more about action steps from the CDC’s COVID by County page.