Deal Lake is a man-made lake in Monmouth County, New Jersey. It is the largest lake in the county and one of the largest lakes in New Jersey, occupying 64 ha and drains into the Atlantic Ocean.
Seven municipalities border the lake, accounting for 43 km of shoreline, including Allenhurst, Asbury Park, Deal, Interlaken, Loch Arbour, Neptune Township and Ocean Township.
Deal Lake, like many urban and suburban bodies of water experienced serious environment pollutant problems in the mid 20th century, in 1974 the Deal Lake Commission was formed to help save the lake.
Deal is a freshwater lake, but is unique because it has spawning saltwater fish, including alewives, blueback herring and gizzard shad.
