Fisher Island, located off Miami, is the wealthiest zip code in the country, home to multimillion-dollar condos and about 800 families and is only accessible by boat or helicopter. Memberships to the Fisher Island Club cost about $250,000 and the average annual income was $2.5million in 2015, according to Bloomberg. 

Notable residents on the island include Hasbro Toys CEO Alan Hassenfeld, Yard House founder Steele Platt, tennis players Caroline Wozniacki and Boris Becker, former NBA player David Lee and Victoria Secret model Karolina Kurkova. Oprah Winfrey and Mel Brooks also had homes on the oasis. 

There are between five and nine confirmed cases of COVID-19 reported in Fisher Island's zipcode 33109, according to government data. 

The island purchased antibody tests, which is a blood prick used to determine if someone has been exposed to COVID-19 and if they have developed antibodies to it. 

In Florida overall there are over 21,000 cases of the virus and there have been 499 deaths as of Monday night.