The tiny island of Bora Bora in French Polynesia only has 8,000 permanent residents. Even still, they were once an independent kingdom!
Bora Bora is made up of the island of Bora Bora proper in the center, with small islets made of coral surrounding it and creating a beautiful lagoon in the middle. All of this land was ruled over by the Kingdom of Bora Bora, along with some small surrounding islands.
While there have been settlers on Bora Bora since the 4th century AD, it wasn't until the early 19th century that it was officially recognized as a Kingdom by the rest of the world. As one of many small island kingdoms in Polynesia, it shared members of its royal family and language with other islands such as Tahiti, Hauahine, and Raiatea.
Unfortunately, the independent Kingdom of Bora Bora barely lasted 100 years. In 1888, the island was annexed by France, and their last monarch, Queen Teriimaevarua III, was forced to abdicate the throne in 1895.