Florida policyholders so far have filed almost $2 billion in claims to insurers for damage from Hurricane Irma, the state's insurance regulator said on Monday.
"We've got a long road to go, we've got activity that will be occurring here on the recovery side for months", Price said at a news conference.
Monroe County Sheriff Rick Ramsay said residents of Marathon Key could return to their homes Saturday, starting at 9 a.m. ET.
Many school districts reopened Monday, with more set to reopen within the next week.
Large numbers of people in the badly-damaged Keys are still in the dark, with almost 30 percent of homes and businesses in Monroe County without power. Twenty-five percent of homes were destroyed when the storm ripped through and many more were heavily damaged.
Seventy percent of critical facilities have power in the Upper Keys as of Saturday afternoon, according to the Florida Keys Electric Cooperative Association, which provides service from Key Largo to Marathon. All other Keys residents can return home Sunday morning at sunrise, he said. One middle school remained closed Monday for cleaning. In the Lower Keys and Key West, it remains dusk to dawn.
Irma also killed at least another 40 people in the Caribbean before hitting the Keys September 10 as a Category Four hurricane with winds of 295 kilometres per hour, and then barrelling up the length of the state.
Brice Barr, who owns a charter fishing boat business in Key West, said he would like to head back south.
Miami-Dade and Broward counties had hoped to resume operations Monday.
"We're so blessed and lucky to not be in the same place that they are right now, and it could've been us".
At least 34 storm-related deaths have been reported on the U.S. mainland, according to local officials. "Now it's time to help our neighbors, and that's what we're doing today", Diaz said.