Cook County, Illinois, Sheriff’s Office Covid-19 Data

Records from the Sheriff’s Office in Cook County, Illinois, of coronavirus-related data and statistics.

Page 3: From March 17 to April 13, 2020, Cook County Jail only tested 10.3 percent of its detained population, cumulatively.

Page 6: On April 21, 2020, out of the 722 tests completed, Cook County Jail had a 70 percent positive test rate.