Lee County, which encompasses Fort Myers, accounts for most of the fatalities.
The remnants of Ian are charging up the East Coast on Saturday after making landfall as a Category 1 hurricane in South Carolina on Friday afternoon.
The monster storm made its first U.S. landfall on Wednesday on Florida's west coast as a powerful Category 4 hurricane, shredding homes with ferocious winds topping 150 mph. Florida's death toll has climbed to at least 81, according to information from local officials.
Florida Governor Ron DeSantis will hold his next press conference at 8:45 a.m. ET, according to a media advisory provided by his office.
DeSantis will be joined by FEMA administrator Deanne Criswell.
-ABC News' Ahmad Hemingway
President Joe Biden has declared a state of emergency in South Carolina, the White House announced late Thursday night, as Hurricane Ian takes aim at the state.
-ABC News' Lauren Minore
Hurricane Ian has strengthened, with winds now at 85 mph, as it continues to move northward off the east coast of Florida.
The forecast track has shifted a little farther north with the latest advisory at 11 p.m. ET, putting cities like Myrtle Beach, S.C., in the storm's path for worse impacts, while less impact could be seen in Charleston.
Wind Gusts up to 90 mph are possible in Myrtle Beach on Friday afternoon, as Ian is expected to make landfall toward the south. Much of Georgia to the Carolinas will experience wind gusts over 50 mph.
-ABC News' Riley Winch
Despite water receding in Fort Myers following Hurricane Ian's destructive path across Florida, 80% of the city is still without power, while 70% is without water, Mayor Kevin Anderson told ABC News Live Prime.
Anderson said the most important thing is to get electricity and water back up and running for residents, especially since it's still hot and humid in the area and people need air conditioning and water.
"Tomorrow, we're expecting the delivery of the pods with the water and food and ice and we'll be setting up delivery stations," he said. "Again, the problem is it's very, very difficult to live here without air conditioning."
Fort Myers has performed about 200 rescues and counting, according to the mayor.
"The crews were out and they're probably still out there working now, getting the roads cleared and getting the roads where they're traversable so that emergency vehicles can respond," Anderson said.
