Burlington Island is officially part of the city of Burlington , in Burlington County , New Jersey , United States .
Burlington Island is a 300 - acre ( 1.2 km ) island located in the Delaware River between Pennsylvania and New Jersey in the United States .
island   is officially part of the city of island , in Burlington County , New Jersey , United States .
Burlington Island is a 300 - acre ( 1.2 km ) island located in the Delaware River between Pennsylvania and New Jersey in the United States .