These were the jurisdictions with the highest case rates, positivity rates and death rates* for each month, based on when data was reported.
Case and death rates are rounded.
*Among jurisdictions with at least 10 deaths reported that month.
+Rate is higher than actual number of cases or deaths as county's population is under 100,000.
^Jurisdiction-specific fatality data began on April 3.
Source:Maryland Department of Health, U.S. Census BureauGet the data