The rally may be to blame for the outbreak raging in the Upper Midwest.
The person had been hospitalized in the ICU.
The number is up eight from the day prior.
Health officials had advised Minnesotans not to attend.
The annual motorcycle rally begins Friday and lasts through August 16.
There has been local opposition to holding the event in the time of COVID-19.
The annual event attracts hundreds of thousands of motorcyclists every year.