Wetlands in Nassau County, New York

Nassau County, New York has 32,457 acres wetland mapped. The map below shows every mapped feature inside the county boundary.

Nassau County, New York at a glance

Wetland mapped32,457 acres
Distinct wetlands mapped10,734
Share of the county that is wetland16.2%
Most common wetland typeEstuarine and Marine Wetland (4,904)
Distinct wetland types7
Largest single wetland9,550 acres (Estuarine and Marine Deepwater)

Nassau County, New York is home to 1,398,939 residents. Land Owl's national wetlands layer records the following within the county boundary — Wetland mapped: 32,457 acres. Distinct wetlands mapped: 10,734. Share of the county that is wetland: 16.2%. Most common wetland type: Estuarine and Marine Wetland (4,904). Distinct wetland types: 7. Largest single wetland: 9,550 acres (Estuarine and Marine Deepwater). Every feature shown on the map above is clickable, and the figures on this page are derived from the same data the map renders, so they always agree. A free Land Owl account adds parcel boundaries, ownership records, flood zones, soils, wetlands and topography over the same view.

Frequently asked questions

How many wetlands are there in Nassau County, New York?
Land Owl maps 32,457 acres wetland mapped within Nassau County, New York.
Is this wetlands map free to use?
Yes. This map is free to view. A free Land Owl account unlocks the other data layers, parcel boundaries and ownership records.
Where does this data come from?
Land Owl maps wetlands from the U.S. Fish & Wildlife Service National Wetlands Inventory (NWI). NWI-mapped wetlands are a screening tool, not a jurisdictional delineation — confirm any boundary with a qualified delineator before you rely on it.

See every layer over Nassau County

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