Hiawatha Island is an island located by Owego, New York, on the Susquehanna River. The island covers an area of 112 acres which makes up the majority of Hiawatha Island Riverfront Park Complex. The island is the largest island on the Susquehanna River in New York State and contains a diverse collection of woods, meadows and fields. The island exists as part of the Susquehanna 100 year flood plain. In 1994 a historical description of Hiawatha Island and its inhabitants was published by the Owego Historical Society.