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.
Ian’s winds slowed to 65 mph early on Thursday morning, downgrading the system to a tropical storm, the National Hurricane Center said.
“The Hurricane Warnings along the east and west coasts of the Florida peninsula have been changed to Tropical Storm Warnings,” the center said.
-ABC News’ Max Golembo
Florida Governor Ron DeSantis will be holding his next press conference on the latest developments of Hurricane Ian at 8:45 a.m. ET at the State Emergency Operations Center in Tallahassee.
President Biden, meanwhile, will visit FEMA headquarters in Washington, D.C. to receive an update on Hurricane Ian at 12 p.m. ET.
While Hurricane Ian is expected to become a tropical storm on Thursday, the storm has battered southwest Florida and has left more than 2 million people without power so far.
As of the 2 a.m. ET advisory this morning, Ian continues to maintain its hurricane status.
However, it has weakened to a 75 mph Category 1 hurricane and is expected to become a tropical storm later this morning before emerging off of Florida’s east coast.
Ian’s new track will be issued and updated again at 5 a.m. ET.
-ABC News' Riley Winch
Florida's electric providers said more than 2.3 million customers were without power at about 2 a.m. local time.
Florida Power & Light, the state's largest provider, reported more than 1.1 million outages for its 5.7 million customers.
“Hurricane Ian’s catastrophic winds will mean parts of our system will need to be rebuilt -- not restored,” the company said on Twitter late Wednesday. “Be prepared for widespread, extended outages as we are assessing the damage. We are already at work restoring power where we can do so safely.”
-ABC News’ Keith Harden
