Liberty Island not the portions added by infill. Thus it was agreed that the parts of the island made of filled land belonged to New Jersey while the original natural part belonged to New York. This proved impractical to administer and New Jersey and New York subsequently agreed to share jurisdiction of the entire island. This special situation only applies to Ellis Island and part of Shooters Island. Liberty Island has been owned by the federal government since 1801, first as a military installation and now as a national landmark. Statue of Liberty National Monument, Ellis Island and Liberty Island, listed on
Barnum Island, New York Barnum Island, New York Barnum Island is a hamlet and census-designated place (CDP) in Nassau County, New York, United States. The population was 2,414 at the 2010 census. It occupies the eastern portion of an island situated between Long Island and Long Beach. That island, previously known in its entirety as Hog Island, consists entirely of the communities of Barnum Island, Island Park, and Harbor Island. Barnum Island is an unincorporated area of the Town of Hempstead. Most of Barnum Island is separated from the Village of Island Park by the LIRR's Long Beach Branch rail line to Long Beach.