Fisher Island is a census-designated place (CDP) and town located on a man-made island of the same name in both the City of Miami Beach and on unincorporated land in Miami-Dade County, Florida . As of the 2000 census, the CDP had only 218 households and a total population of 467 persons. The relatively small Miami Beach portion, at the extreme northeast part of the island, was uninhabited.

Named for automotive parts pioneer and Miami Beach developer Carl G. Fisher, who once owned it, Fisher Island is 3 miles off shore of Miami, Florida . No road or causeway connects to the island, which is accessible only by private ferry . Once a one-family island home of the Vanderbilts , and later several other millionaires, it was sold for development in 1960s. The property sat vacant for well over 15 years before development was begun for very limited and restrictive multi-family use.

Today, Fisher Island is occupied again, but remains a very exclusive and wealthy community. According to the U.S. Census Bureau, Fisher Island had the highest per capita income of any place in the United States in 2000.