Almost 25 percent of all customers in Miami-Dade County still don't have power.
U.S. President Donald Trump visited Gulf Coast Florida communities recovering from the hurricane on Thursday, praising first-responders for their role in limiting the loss of life.
The total number of customers, representing about 12 million people, dipped from a peak of more than 7.4 million customers, or about 15 million people, late on Monday.
The death toll from Hurricane Irma was at 82 early on Friday as 1.5 million homes and businesses in Florida remained without power in sweltering heat, five days after the historic storm ripped through southeast U.S.
Most of those costs were related to Matthew, which caused a third as many outages as Irma did for FPL.
Georgia Power said it believes 95 percent of impacted customers will see service restored by Sunday night.
Duke Energy Corp, which serves the northern and central parts of Florida, said on its website it expects to restore service to most customers by midnight September 17.
17 percent of Manatee County waiting for power after Irma
According to St. Johns County, Florida Power & Light (FPL) and JEA continue to report significant power outages throughout the county.
Tampa Electric said in a statement their crews have restored power to more than 90% of the 750,000 customers impacted by the storm.
FPL said after repairing any damage to its power plants and the lines that carry electricity from the generating facilities, the company next restores "critical facilities", like hospitals, police and fire stations, communication facilities, water treatment plants, transportation providers and shelters.
"We know it is hard to lose food after an outage". Officials are holding daily calls with those facilities to make sure they have everything they need to care for their residents.
Tens of thousands of customers in Pinellas County on the state's west coast still don't have electricity as well.
In Manatee County, 34,970 Florida Power and Light customers and 279 cooperatives customers were still in the dark, according to the Florida Division of Emergency Management.More news: Edith Windsor, Gay Rights Pioneer, Dies at 88
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