There were 12 counties, including Montgomery and Butler, in Level 3, an increase from seven counties last week.
Any counties that moved from Level 2 to Level 3 will be be under the mask order effective tomorrow at 6 p.m., DeWine said. A mask order went into effect for the original seven Level 3 counties Wednesday evening.
For Huron County, which went from a Level 3 to a Level 2, they will no longer be under the order.
In Montgomery County, more than 600 cases have been reported in the last 14 days, DeWine said.
From June 16 to July 3, outpatient coronavirus visits went from 14 to 48.
Of the county’s cases, 63% are not related to congregate facilities.
Eighteen counties went from Level 1, the least severe, to Level 2.
>> Coronavirus Alert Levels: What do they mean?
Though only 12 of Ohio’s 88 counties will be under the mask public health order, the governor urged all Ohioans to wear masks when in public.
If 75 to 80% of Ohioans wear mask, DeWine said it will make a “fundamental difference.”
“It will change the fall. It will change the winter,” he said. “Our destinies are in our own hands.”
>> Coronavirus: Here’s the Montgomery County Sheriff’s plans for new mask requirement
>> What to know about the new mask order in area counties
The Ohio Department of Health is reporting a total of 61,331 total cases of coronavirus and 57,506 confirmed cases in the state, with 1,150 total cases reported over the last 24 hours.
There have been 3,006 total deaths and 2,749 confirmed deaths.
The state is reporting 8,570 hospitalizations and 2,146 ICU admissions.
Coronavirus hospitalizations have continued to increase during the pandemic.
On June 26, three were 619 coronavirus patients in hospital. Today there are 905, DeWine said.
>> Montgomery, Butler among 7 counties on high alert for coronavirus
>> 1.3 million more seek jobless benefits
>> Hiring outlook dim for second half of year
>> Sheriff: ‘Please do not call 911’ about mask mandates
>> Businesses have plans to keep workers safe. Are the protections enough?