Phantom islands are islands that are believed to exist and appear on maps for a period of time (sometimes centuries), and they are removed after they are proven not to exist (or the general population stops believing that they exist).
... a median income of $51,332 versus $32,188 for females. The per capita income for the town is $25,466. 7.0% of the population and 4.6% of families are below the poverty ...