Florida Keys Schools Set Lowest Tax Rate in Over a Decade

If you're eyeing a home in the Florida Keys, local school taxes are part of the cost-of-living picture worth understanding. Monroe County's School Board recently approved a tentative millage rate for the upcoming 2026–27 school year at its late-July meeting in Key West, and the headline number is the lowest the district has set in over a decade.

So what's the catch? Property values in Monroe County — already among the highest in Florida — have continued to climb, which means the district is expected to bring in more total property tax revenue than it collected in the prior year, even with that lower rate. This is a pattern playing out in many high-demand Florida counties: rates tick down on paper, but assessed values rise fast enough that actual tax bills don't necessarily shrink.

For prospective buyers, this is a useful reminder that millage rates alone don't tell the full story of what you'll owe each year. In the Keys especially, where median home prices far exceed state averages, even a modest rate applied to a high assessed value produces a substantial annual bill. Factor in homestead exemption eligibility (available to primary residents), and your effective tax burden could look quite different from a vacation-home investor's.

Monroe County's school system serves a relatively small, geographically spread-out student population across the island chain, and its budget decisions reflect the unique financial pressures of operating in one of Florida's most expensive and hurricane-exposed communities.

You can find more detail on the budget presentation and rate-setting process in the original report.

What this means if you're moving to Florida: In high-value markets like the Florida Keys, a falling millage rate doesn't automatically mean a lower tax bill — rising assessed values can offset the difference, so always model your full property tax cost before committing to a purchase.