ELLIOTT KEY, Fla. — Like many Florida schemes, the city of Islandia sprang from the delusions of land developers who imagined a rollicking resort town on an inaccessible speck of coral rock north of Key Largo.

In the end, their dreams were just another Florida hustle, one the authorities are finally poised to shut down. Next month, more than 50 years after Islandia’s incorporation, the Miami-Dade Board of County Commissioners is expected to take a vote to abolish its tiniest city — a chain of 33 islands, reachable only by boat, with Elliott Key as its centerpiece.

Islandia (population 5) will not be missed, in large part because Islandia (pronounced eye-LAND-eeyah) never existed; it was always more a developers’ mirage than a spot on the map. Islandia has no school, no sewers, no courthouse, no shops and no road leading in or out. In fact, most of it sits on national park land.

It once had a municipal government. But that too was a ruse, a function of voter shenanigans that went unnoticed by the county for nearly 30 years. Since 1961, none of the voters who chose Islandia’s succession of mayors and City Council members actually lived on the chain of islands, a violation of state law. Only property owners voted, and for simplicity’s sake, they elected themselves. (Conveniently, city hall meetings were held inside real estate offices in the Miami area.)